Everything pinned below is either on tape (photos, quotes) or clearly-labeled speculation (odds, string). The red string is ours. The clues are theirs.

Founder worked at NVIDIA Research. Kernel is Hopper-locked. "Essentially the ASIC for matmuls" — their words.
Together's arch-rival in open-model serving. The 2-for-1 discount endpoint begs for a counter-move.
"The Cursors of the world" — cited unprompted, mid-AMA. Own models. Monster inference bill.
Best fit for the Blackwell clue: GB200 fleets at absurd scale. Zero crypto allergy.

Open stack, challenger economics, Blackhole just GA'd. "Every matmul also mines" sells silicon.
One of two dedicated, partner-named RPC endpoints on Pearl's domain: anchorage.rpc.pearlresearch.ai. Nobody stands up a node named for a specific company they aren't integrating with. The institutional rail.
The other one: coinbase.rpc.pearlresearch.ai — found on a wider re-probe, resolving cleanly to Pearl's own Google Cloud infra. Same pattern, same logic, bigger name: the largest US crypto exchange, publicly traded (NASDAQ: COIN). The retail rail.
Not two leads. One pattern. Two hostnames, built at the same time, on the same infrastructure, named for two companies that between them cover both ends of how money actually gets into a token: Anchorage is how institutions (funds, family offices, eventually an ETF-style product) legally hold an asset; Coinbase is how everyone else buys and trades one. You don't provision both unless you're building toward being fully investable — not just mineable. Anchorage's endpoint carries its own dedicated TLS certificate (a real provisioning step); Coinbase's rides the domain's wildcard cert, reading as newer or less far along. Speculation, clearly labeled — but built on two hostnames Pearl themselves chose to publish, not guesswork.
| Suspect | Odds | The case |
|---|---|---|
| Hyperscalers — "in touch with three, advanced with two, one signing this week" | ||
| Fireworks AI | 35% | Together's closest rival; the mining-subsidized endpoint is the obvious counter. |
| Nebius | 20% | First-party inference API + enormous idle fleet. |
| CoreWeave | 15% | The most literal "largest newer hyperscaler." |
| Baseten / Crusoe | 10% | Name-dropped mid-call while the real partners stayed sealed. Interesting. |
| Chip makers — "into their design and into their spec" + a public collaboration reveal in ~1 month | ||
| NVIDIA | 30% | The founder thread. Co-publishing a technical collaboration is exactly NVIDIA-shaped. |
| Tenstorrent | 30% | Challenger with an open stack and fresh silicon to differentiate. |
| d-Matrix | 15% | Dark horse: silicon built around INT8 matmul — Pearl's only precision today. |
| Groq / SambaNova / AMD | 15% | The field. Everyone needs a story against NVIDIA. |
| Closed AI labs — "~5 in talks, 2–3 in the Valley, 3 waiting on Blackwell FP4" | ||
| Cursor (Anysphere) | 30% | Cited unprompted. Own closed models, inference-dominated economics. |
| xAI | 25% | GB200 fleets; the cleanest Blackwell fit. |
| Perplexity | 20% | Sonar at volume; famously ruthless on inference cost. |
| Reka / Magic / Poolside | 15% | Right size, right zip code for "neolabs in the Valley." |
| Custody, exchange & institutional rails — confirmed by DNS, not editorial guesswork | ||
| Anchorage Digital | 85% | One of two partner-named RPC endpoints on the whole domain. Not a guess like the rows above — a hostname Pearl themselves published. |
| Coinbase | 82% | The other partner-named endpoint, found on a wider 89-name re-probe. Largest US exchange, publicly traded. |
ODDS ARE EDITORIAL GUESSES BY PEARLIFIED — NOT REPORTING, NOT INSIDE INFO. WE GRADE OURSELVES IN PUBLIC WHEN NAMES DROP.