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 0xa1d13a4e1b099ec95d1533d3fd4a0ad433735edd663b289f2d4cd7473de942c6. Chain 2 (Bitcoin): anchored in block 953842 (2026-06-15T22:22:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f3cb51eb-dfac-4e7d-b1ed-e0d70b74c45b.json and https://artists.proofprofile.net/proofs/artist/f3cb51eb-dfac-4e7d-b1ed-e0d70b74c45b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0x68a990faf685ae7a9c56dfb78669a5a9af2e8e72267dbcc275c5ddc908453dfc. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:20:36Z), 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/TCAHI2322478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa891397836a251d9133c56dce8e9fc2391e52e59e5362e12635073c6c7f74dbf. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T10:06:41Z), 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/TCAHN2375620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1153f060443c214ea4496ac5b914d0527f2abbd49231f883530b4d01354bd325. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:38:45Z), 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/TCAHN2375741.
All I Really Need (Live at Living Room Sessions)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4366d61f975ac3c62177018bf4551795b05059441f47d4202d19ba921669a0d5. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T02:28:59Z), 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/TCAIA2443448.
Fresh Wind/Breathe (Live at Living Room Sessions)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcbce8e8985fece7c89b9106aeef4b46e029f692b3f6b141ea5f8351773a97b4. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), 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/TCAIH2418232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa756d512a92d4a2688da176e5454e10ff96abaf7b81e67c240c20d6a9b61695a. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/TCAIO2485322.
If I Have You (Live at Living Room Sessions)
Already Worthy (Live at Living Room Sessions)
Already Worthy - Live at Living Room Sessions
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x352eb3457569051c2571bb204ae67a6a1d31143a3cf882589fae803372a425cb. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/TCAJQ2501679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33958d18cf97025ebde05021315b8fefc3f627080eda1f249f8e62f4575c5255. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T09:21:01Z), 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/QT65X2593117.