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 0xb4d0d1be84a1072a20410732d55609d907e7a8c342c311f5165f656ef72ae95b. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d906c2e4-1108-42ff-9e7e-7fcd9f45c2f2.json and https://artists.proofprofile.net/proofs/artist/d906c2e4-1108-42ff-9e7e-7fcd9f45c2f2.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 → 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 0x1c12da1e9adf3f12065d62541f8fa14e336c8a6db48ca986c959374f823f39aa. Chain 2 (Bitcoin): anchored in block 958325 (2026-07-16T23:54:44Z), 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/QMFME2173625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc562ad158b810e139daeafa4745d92fa135e472846e4ca82950041189ea419e9. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QMFME2192600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x611edd3c882d075514ce80e6f5bf3d66ff0f690e6f1abb1e7ff8a523837a913a. Chain 2 (Bitcoin): anchored in block 957759 (2026-07-12T21:46:51Z), 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/QMFME2192598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a06533d7a5b6bc3021d2501063d3c28bbeb5314f6ae61d06fcd8df722f23cdc. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QM6P42220097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a06533d7a5b6bc3021d2501063d3c28bbeb5314f6ae61d06fcd8df722f23cdc. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/QM6P42220097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c992ef400f53ef8b209ef3c17ac381021b6c86d1dd20c5d634393c9039fc172. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QMBZ92357672.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5d45703bd0a647a60af4d1be083eab7f8b1447a9e8f162bd0996004bf596087. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/QMDA72361083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae48d83ac6221c10b25578a7f6fa24876bb219e84ee30bb495969d115264a6d0. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/QMFME2322556.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39ba38b5d9325b4c8b29d42a3ef6e95cd9346631cd5799fb9ca73e09fdeb326c. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QMBZ92396233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62fc39681fb03e2d2182d73bc47002188f90f4e671d478f077dbad4396fb7866. 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/QMFME2322483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x400be5b71afb39011380d821734c0f278bda5451c2c7671f05cc32296b94ba69. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/QMFME2322482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd90c879d173d7cbb3a0e941a7767acff714ee7579514c58e754af858db18ff82. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QMFME2322504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c992ef400f53ef8b209ef3c17ac381021b6c86d1dd20c5d634393c9039fc172. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QMBZ92357672.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae48d83ac6221c10b25578a7f6fa24876bb219e84ee30bb495969d115264a6d0. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QMFME2322556.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39ba38b5d9325b4c8b29d42a3ef6e95cd9346631cd5799fb9ca73e09fdeb326c. 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/QMBZ92396233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62fc39681fb03e2d2182d73bc47002188f90f4e671d478f077dbad4396fb7866. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QMFME2322483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28647151517bd6aea524e6274394ba8d01ac987b86a95292bc2f1d78b0d36482. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/QMFME2322480.