| Suede AI IP Registry | SHA-256 fingerprint of the exact file, wallet-signed creator claim with contributors and a rights declaration, block timestamp, ERC-721 certificate | Base and Avalanche mainnet, identical contract bytecode | About a cent in network fees per work |
| Story Protocol | On-chain IP assets with open-source licensing and royalty modules; Trace now records AI training-data contributions | Story's own Layer 1 network, now the DATA Network | Network gas in the chain's native token, which is migrating from IP to DATA |
| Safe Creative | Registration certificate with SHA-256 hash, three digital fingerprints and double timestamping; eIDAS trust services and blockchain auditing where applicable | Safe Creative's platform, with qualified trust service providers | Work registration from $23 + VAT per use; plans from $12.50/month (Personal), $49/month (Business), $130/month (Enterprise) |
| Bernstein | Cryptographic fingerprint of a browser-encrypted file, chained across versions; EU qualified and Chinese trusted timestamps on higher plans | The Bitcoin blockchain | Starter $54/month (1 registration), Scale $119/month (5), Enterprise $329/month (30), or $64 per registration |
| Numbers Protocol | GPS, timestamp and device data written at the moment of capture, with a C2PA manifest on each photo or video | Numbers blockchain and EVM-compatible networks | ProofSnap for iOS is a free download |
| Adobe Content Authenticity | Content Credentials (C2PA metadata) with a verified name, social links and an AI training preference, backed by invisible watermarks and fingerprinting | Inside the file's metadata, recoverable through Adobe's Inspect tool and Chrome extension | Free (public beta launched April 2025) |