In J. R. R. Tolkien’s fictional universe of Middle-earth, the Old Forest was a daunting and ancient woodland just beyond the eastern borders of the Shire. Its first and main appearance in print was in
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1491aea3f31e3f912762883b090a88fb25c1d26d6c656eb3e3f241dbba4c54a. Chain 2 (Bitcoin): anchored in block 953968 (2026-06-16T16:01:49Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/29458c85-10e3-4d45-841c-ec04966d7d30.json and https://artists.proofprofile.net/proofs/artist/29458c85-10e3-4d45-841c-ec04966d7d30.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).