1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x8cfe897354e2ace5ade610fe858f58cd0a5b4675e42aa25fa288c7a3d87bcaff. Chain 2 (Bitcoin): anchored in block 953847 (2026-06-15T22:51:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/00daa94c-357d-41a6-96f3-3c80ca5aee7d.json and https://artists.proofprofile.net/proofs/artist/00daa94c-357d-41a6-96f3-3c80ca5aee7d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Jerry's Smilin': A Guitar Tribute to the Grateful Dead
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaba31c397e79720a9eaebeb3e5528225be97bebd3995a01e3d2dd39910845ab. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USY252025358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20715cf49872aec2c3fe6126eedb4cfd201a7add0ebe7724a3964eaa789644ae. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES7860800113.
Passejant Per New Orleans - Walking Round New Orleans
Guitar Words - Paraules de Guitarra - L´Espera
Hidrògen: Espais Naturals de Catalunya, Vol. 2
Martí Gomila (Salem) i Mª Antonia Gomila