A burial mound in southern Siberia has yielded two clues to the history of cannabis: seeds placed in a grave and chemical traces preserved in human hair. In a study published November 5 in Science, archaeologist Gino Caspari and colleagues argue that the finds, taken together, point to psychoactive cannabis use about 2,800 years ago. The discovery pushes the evidence for that practice further back than a widely cited find in western China.

What turned up at Tunnug 1

The excavation site, Tunnug 1, lies in the Uyuk Valley in the Republic of Tyva. Its monumental burial mound is associated with early Scythian culture, and the excavations have recovered horse gear, weapons and animal imagery. The clues to cannabis use were considerably smaller. The team found more than a thousand cannabis seeds and used radiocarbon dating on some of them to establish their age. According to the University of Bern’s account of the research, preserved human hair from the same grave also contained traces of cannabinol, or CBN.

Seeds can tell archaeologists that a plant was present. They can also help show whether someone brought it into a particular setting. At Tunnug 1, where the researchers interpreted the seeds as deliberately deposited, the find makes cannabis part of the burial’s material record. It still leaves a basic question open. Cannabis can provide food, oil and fiber, so the presence of seeds alone offers several plausible explanations for why people valued the plant.

The hair gives researchers another line of evidence. CBN can form as THC degrades, and its presence is consistent with exposure to psychoactive cannabis. The overlap matters because each find answers a different question. The seeds place cannabis in the burial context. The hair preserves a chemical signal relevant to how people may have used it. Together, they give the team a stronger basis for its interpretation than either clue would provide on its own.

What the evidence can tell us about consumption

As the Associated Press reported, Caspari said the team could not determine whether the cannabis was inhaled or ingested. The distinction matters for anyone imagining what the practice looked like. The evidence supports a case for exposure, while the method, timing and experience remain open questions. It also leaves room for several explanations of why the seeds went into the grave. Their placement gives them a ceremonial context, but their precise role in that ceremony remains unclear.

There is a temptation to read a burial deposit as a snapshot of daily life. A monumental tomb, however, reflects choices about what to place with the dead and what to leave out. Even a plant that held real significance in that setting might have served different purposes elsewhere. To know how widely people used cannabis, archaeologists would need evidence from other settings, including places where ordinary activities took place.

How Siberia changes the timeline

One point of comparison comes from the Jirzankal Cemetery in the Pamir Mountains of western China. In a 2019 study in Science Advances, researchers reported cannabis residues in wooden braziers from burials dating to roughly 2,500 years ago. Those objects gave the team a reason to infer that cannabis had been heated. The Siberian discovery is about three centuries older, and its evidence comes from different materials. One site offers evidence in equipment used in a burial setting. The other combines a botanical find with a chemical trace in human remains.

Written accounts give historians a third kind of evidence. The Greek historian Herodotus described Scythians using cannabis in the fifth century BCE. His account has long been part of the discussion because it describes a practice in words. Tunnug 1 gives researchers something they can examine independently of the text. It also predates that account, extending the timeline without requiring researchers to assume that the people at the Siberian burial practiced the same ritual Herodotus described.

What survived at Tunnug 1 is unusual. The record of ancient cannabis use depends on the chance that someone left behind material that could survive burial, that archaeologists recovered it, and that modern analysis could identify it. Another site might yield seeds without hair, or a vessel without enough residue to test. Those gaps make it difficult to say how long the practice had already existed by the time this tomb was built.

For now, the finding gives cannabis history a firmer point on the map and a date supported by physical evidence. By about 2,800 years ago, people in this part of southern Siberia appear to have encountered cannabis as an intoxicant. The circumstances of that use, from preparation to purpose, are the next questions the find leaves open.

Illustrative photo of grassland in Inner Mongolia, China. Photo: Charles MingZ / Unsplash.

Two California cannabis distributors have started doing business under one name. Kiva Sales & Service and Petalfast introduced Waveform Sales & Logistics on November 3, following the August closing of their merger. The change is most visible to the retailers and brands that place and fulfill wholesale orders. It also offers a look at the work that goes into making a cannabis product available in the first place.

The November 3 company announcement, distributed by PR Newswire, says the combined business serves 975 active stores, represents 48 California brands and handles about 30,000 retail deliveries annually. Those are company figures describing the scale of the network. They do not tell a buyer how many stores carry a particular product or how frequently one shop reorders it.

The deal closed in August. The new name arrived in November.

The businesses announced the completed merger on August 25 and identified August 17 as the closing date. November marks the introduction of the combined identity and operating platform. The dates matter for anyone tracking the deal: the latest announcement describes what the companies are putting under the Waveform name after the transaction.

The companies’ August announcement described a service for brands that run their own sales teams, alongside fuller partnerships with more retail sales support. The November release presents three service tiers and describes a platform that combines an ordering marketplace, customer relationship tools and inside sales. For a brand with its own retail contacts, the practical question is which responsibilities it wants to keep. A company that needs help winning accounts may evaluate a different package from a business that has buyers lined up and needs a way to fulfill orders.

For retailers, the distinction is between discovering a product, placing an order and receiving it. A shared ordering platform may change how a buyer handles the first two steps. To assess the third, a store needs to know what was delivered and when, whether the shipment matches the order and how shortages are handled. A count of deliveries provides a sense of scale. It cannot answer those questions for a particular order.

What distribution does before a delivery

California’s Department of Cannabis Control distribution guidance explains that cannabis transport requires a distribution license and that the applicable license depends on the activity. Full distributors have responsibilities that extend to regulatory testing and quality assurance before eligible goods head to retail. A sales portal and a delivery schedule sit alongside that process.

The department’s sampling checklist gives a concrete example. The distributor must possess the entire batch before arranging for compliance testing. Cannabis products and pre-rolls generally have to be in their final retail packaging and labeling when sampled, while flower can be sampled in bulk. After passing testing, the batch can move to authorized licensees and the certificate of analysis travels through the supply chain. Each of those steps concerns a particular batch, even if the retailer’s ordering screen presents several items under one brand.

Our coverage of federal medical cannabis registrations looked at a separate set of supply chain obligations. Waveform’s launch concerns a California distribution business. Readers following both stories should keep the state rules for getting goods to California retailers separate from the federal requirements discussed in that earlier report.

What to watch at the store level

For a shopper, the useful measure is whether a familiar item is on the shelf when they want it. A distributor can expand the number of retailers a brand can approach, but the retailer still makes its own buying decisions. Local availability also depends on inventory after the delivery arrives. The company’s list of brands and stores describes the overall network, so use a current store menu or ask the retailer directly for a specific package.

The launch leaves practical questions for both sides of the wholesale relationship. A brand can ask which parts of sales, invoicing and fulfillment are included in its tier. A retailer can ask whether its point of contact, ordering process or delivery window has changed. Over time, the clearest evidence of how the integration is working will come from ordinary orders: whether stores can find what they need, receive what they ordered and get a clear answer when something changes.

That evidence would also help separate the reach of the combined operation from the performance of individual service tiers. A brand handling its own sales may judge the partnership by delivery coverage and turnaround. One relying on the distributor to develop accounts may look first at repeat orders from stores it could not previously reach.

Illustrative warehouse photo showing general merchandise. Photo: Antonius Natan / Pexels.

Cannafest is scheduled for November 6–8 at PVA Expo Praha Letňany, where three days of cannabis exhibits share a venue with a conference on cultivation, medical research and policy. For a visitor trying to choose a day, Sunday’s schedule offers an unusually clear thread: a talk about lessons from California, a panel about Czech regulation and a discussion comparing U.S. and European markets.

The organizer’s event overview describes a show that spans growing equipment, seeds, vaporizers, hemp textiles, cosmetics and food. Those categories give visitors several ways to approach the floor. A grower comparing equipment, a designer looking at hemp fabric and a reader following a medical research talk may all have different reasons to spend an afternoon in the same building.

What the Sunday program puts together

The official conference agenda lists Luna Stower at noon on Sunday for a talk whose title urges Europe to learn from California’s legalization experience. A discussion of Czech regulation follows at 1 p.m. with Ivan Bartoš and Barbora Pipášová. The schedule then lists a European drug policy session at 2 p.m. and a U.S. and European markets panel at 3 p.m. These are scheduled sessions, and the organizer’s live agenda is the place to check for changes.

The sequence gives a listener a way to compare questions that often get lumped together. A person can hear a speaker’s assessment of a commercial market, then listen for how Czech policymakers describe their own regulatory concerns. The final panel’s comparison gives the audience a chance to see which observations carry over and which depend on the jurisdiction. The agenda establishes the subjects and speakers. Conclusions from the sessions will have to wait until they take place.

Visitors more interested in research can use the same agenda to choose a different day or a shorter window. The schedule includes a session on medical cannabis in integrative dentistry for oncology patients, for example. Treat the session listing as a starting point for questions about research design, the patients studied and the outcomes measured. A conference title alone gives no basis for judging whether a treatment works or for changing a patient’s care.

How to plan the visit

The organizer lists public hours of 11 a.m. to 8 p.m. on Friday and Saturday, and 11 a.m. to 6 p.m. on Sunday. The exhibition venue is at Beranových 667 in Letňany. Cannafest says a valid show ticket covers entry to the professional conference. Anyone planning around a specific session should check the schedule for its local start time and leave room to get from the exhibition floor to the conference hall.

The ticket page gives November 5 as the advance-sale cutoff and lists on-site admission during the show. For a weekend visit, check the current listing for availability, on-site prices and any changes before leaving for the venue. The same page describes proof requirements for some concessions and requires an accompanying adult for visitors under 18.

Read the visitor rules before arrival. An exhibition featuring cannabis products and equipment does not establish permission to use or carry them wherever a visitor goes. Someone traveling internationally should check the rules that apply to the product, the venue and the journey separately. The exhibitor list can help plan what to see, while the visitor rules and the applicable law govern what a person can do.

What to look for on the floor

For a visitor interested in hemp textiles, a useful conversation can start with fiber content and the intended use of the finished product. A fabric sample and a garment label tell different parts of that story. For cultivation equipment, asking what scale a product is designed for can help distinguish something useful at home from a system built for a commercial facility. These are questions a visitor can take to an exhibit without assuming a display reflects a new release.

The conference and the floor can also inform each other. Someone listening to the market comparison on Sunday could ask exhibitors which customers they serve and what requirements shape the products they can offer. That makes the show useful even for visitors who are there to learn how an industry works and have no plans to buy anything.

The organizer reports 247 exhibitors at the previous edition and nearly 24,000 visitors. Those figures describe last year’s event. This weekend’s exhibitor list and floor map are better guides to the booths a visitor can actually find. The organizer also distinguishes exhibitor setup on November 4 and 5 from Friday’s public hours, which begin at 11 a.m. local time.

Illustrative cityscape of Prague. Photo: Calvin Seng / Pexels.