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 0x3b68cb1c4e22bb776eab7d05abff245d16fd6606a2b7e5637dd5b1fd6db14c8f. Chain 2 (Bitcoin): anchored in block 953641 (2026-06-14T13:54:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3a97bdef-32fc-455b-b2a3-84bcc741b76b.json and https://artists.proofprofile.net/proofs/artist/3a97bdef-32fc-455b-b2a3-84bcc741b76b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Photo With Blue Sky, White Cloud, Wires, Windows And A Red R
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 → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 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 0xc51461ee073bacd74092140d1db7a26a0308db02cfdd50afd0537c217bc1ee18. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/DEB339250002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11dda8a081128f33790f9315fa58adc832900062925e23f00236fcc026aa97a9. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/DEB339250003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44c9455f6b40de7adc00e0e25ed2035b98959a0c45f9ec92463238a39489b068. Chain 2 (Bitcoin): anchored in block 958558 (2026-07-18T13:44:16Z), 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/DEB339250004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1891722d6e087b5487941238f90d4ee4ff6fa5c2957989db10c110a48c8c57ad. Chain 2 (Bitcoin): anchored in block 958903 (2026-07-20T18:04:09Z), 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/DEB339250006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe7563d74f8c77e3cca2184f54bb28b7d168ddd6b08b6f1d0ef3daf792b86358. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/DEB339250007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3298e2370184afd2997e0f6dcdb478fd41c54e34e4a5c2de23baa0e98e57e99f. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/DEB339250010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74b04db8e5571e66dc24fa1735f17b511f58996a1bd6294f5230b77f7d1b2ab1. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/DEB330710001.
Twelve Moons - Pt. 1: Winter-Summer, Pt. 2: Summer-Winter
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x237eaf3203a72b3192a7394867084ad22c1509157d73bd66816604be1b655c4e. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DEB339250001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x237eaf3203a72b3192a7394867084ad22c1509157d73bd66816604be1b655c4e. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/DEB339250001.