Category: blockchain security research network / audit-report infrastructure / security education corpus
Summary: Spearbit now matters mostly as Cantina’s premium-network and report lineage, not as an independent platform anchor. The live commercial surface moved into Cantina; what still matters on its own is the curated expert network, the public report archive, and the training corpus that made the brand worth tracking in the first place.
What it does:
Operates or historically operated an elite network of security researchers performing hand-picked security reviews for mission-critical web3 protocols and infrastructure teams
Publishes a large first-party corpus of audit reports through the public portfolio repository, covering protocols and companies such as Optimism, Morpho, Stackup, Ondo, EigenLayer, Uniswap, Monad, Botanix, and others
Maintains educational and researcher-development material through the armory repository, including breakdowns of real findings, seminar links, ZK-security material, diagrams, and security-study resources
Now appears to live commercially within Cantina, whose current site explicitly lists both “Cantina reports” and “Spearbit reports,” preserving Spearbit as a recognizable review line inside a broader AI-native security platform
Key claims:
The Spearbit homepage now redirects with the explicit message that “Spearbit now lives on Cantina,” which is the strongest current signal that the standalone brand has been folded into Cantina’s broader platform surface
The Cantina homepage still presents “Spearbit reports” as a distinct report category alongside Cantina reports and open code reviews, implying the Spearbit brand still carries meaning as a premium review track or legacy report corpus inside the merged platform
The public portfolio repository says Spearbit is a network of expert security engineers offering reviews and other security-related services to web3 projects, with experience spanning protocol design, smart contracts, and the Solidity compiler
The portfolio repository also says Spearbit enables expert freelance auditors seeking flexibility to work on interesting projects together, which is an important clue that Spearbit was structured less like a traditional fixed-team audit boutique and more like a curated expert network
The armory repository says it is a one-stop shop for blockchain security researchers looking for educational material and alpha to level up, reinforcing that Spearbit invested in public researcher education and not just client deliverables
The GitHub organization and repositories expose a meaningful first-party public surface beyond marketing copy: audit PDFs, seminar slides, writeups, diagrams, and educational material for deeper security research
Whitepaper: No canonical Spearbit whitepaper or litepaper surfaced in this pass. The strongest primary sources are the redirecting homepage, Cantina’s current platform page, the Spearbit public audit portfolio, and the armory education repository; see ../whitepapers/spearbit-primary-sources-2026-04-28.md.
Internal linkages
Start with cantina. Spearbit mostly survives there as the premium network and report lineage.
Use sherlock only when the comparison is curated expert review versus a broader lifecycle-security stack.
Comparable to / differs from
Comparable to: Cantina when the point is the premium-researcher network and public-report lineage that survived the brand fold-in.
Differs from: Sherlock, which is a broader hosted security platform rather than a legacy expert-network brand with a report archive.