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 0x91738316dd18f38dec720b38508e3876474789e8aa6680ebe799384385709d46. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c5d3d40f-e8c1-478e-93e2-ee65df250a5f.json and https://artists.proofprofile.net/proofs/artist/c5d3d40f-e8c1-478e-93e2-ee65df250a5f.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 0xc1149e8a8af3d46688a120d8fd67c7bf6e6a3c4b074bd10daf94014efd0bbd71. 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/MYNS10730050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa845a2bb89a5b4f68d03cbc3ca35ba96f0ad95c676141bcffb32df34b421d4ea. 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/MYNS10730058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe91498589d258089d6a2a8082d1ac0f8f0457f55fd2884b6c961eb8b8b91aee9. Chain 2 (Bitcoin): anchored in block 957056 (2026-07-21T23:24:22Z), 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/MYNS10730047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe699585b0a178023267f97c3ac6da7dc127111366c159ee5e71709454dc28222. 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/MYNS12041965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc87f7ad51459409fca23189eedef6cecaa339068b0c8ade745b524f858eb5604. 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/MYNS10730055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3635b320ac5e91f969667f0f47d212d0bcfd4bc9635856b95001221b0bb42659. 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/MYNS12041966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeac28d40356bd5df53af4ae3a4d83b061668c41bb12334612c04f5005d3e1af6. 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/MYNS10730057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba2b62d592e1044693bd7d0fd15731b762fc4587d1be981471bd19e2ddc7c0aa. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/MYEM19300009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69f7034548ab7a38a6d843811c01c7bd320b2095e22c8adaabbf7a496933c930. 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/MYEM19300011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x636d84d322e23dbb342ec7246ad0d84a5e372f074c3a376666b3bcf4c4377fe6. 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/MYEM19300016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x553e1de97528a9f0dd5f0a889622cd54d1833f5e1f0639ddb8572faf02bab5b2. 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/MYEM19300017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90d39a4020ec3380cc77c963b69c28253110fea0465ef2b9f47d10c72e827a10. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/MYNS11131585.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fa7ca7b6cbad931b928a5443793c46cffa2c087f55fd2d32e2be3e15a59315a. 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/MYNS11131590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5de3fe4a10d8cb49590ff5dfe70bec5c2f949ec963a0c121c6838d4000e4f1ad. 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/MYNS11131591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7c1b6211f1755f56f63604ad293e9660fb9dc2070d710532e92a52a11e07a7c. 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/MYNS11131592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeac4542ed24295e5e21f9863fe257146d1ea31236fcc02d70c5a8acc06e71bf5. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/MYNS11131594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c5423122b0c90a54ff15b9c7c80b66b856a8c32fe09c2e6cdc0cc91b8abd04a. 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/MYNS11131595.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe91498589d258089d6a2a8082d1ac0f8f0457f55fd2884b6c961eb8b8b91aee9. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/MYNS10730047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x045c9fa604782e3eddac665485d8fa9073a68633a664560d8b9d32a2e43d125f. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/MYNS10730048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fb16820ef81426e625c19aeb6c6ff26b2eccde42fb7c3c98e9a895d40a68e79. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/MYNS10730049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1149e8a8af3d46688a120d8fd67c7bf6e6a3c4b074bd10daf94014efd0bbd71. 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/MYNS10730050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45dcd95913c2000cb99c9b6eede0b834773ac30dc3c5128da8f5962dc8e923f7. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/MYNS10730051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b8a7d230eac0abd337ec7920a102bf00d80ed5975562e8d3d0b62684613aa1c. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/MYNS10730052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bdaafdca72f7ab3f3dbcc77d9107d765874b1a1b5acb61a277416b24d627ac6. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/MYNS10730053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc62c55146fa050145b6813b3a0abbf387062d411f44e1e179fae5192391047d. Chain 2 (Bitcoin): anchored in block 957032 (2026-07-07T11:43:09Z), 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/MYNS10730054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc87f7ad51459409fca23189eedef6cecaa339068b0c8ade745b524f858eb5604. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/MYNS10730055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeac28d40356bd5df53af4ae3a4d83b061668c41bb12334612c04f5005d3e1af6. 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/MYNS10730057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa845a2bb89a5b4f68d03cbc3ca35ba96f0ad95c676141bcffb32df34b421d4ea. 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/MYNS10730058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x562c8fe58e09b2cdff4a1f810655da8f7d77341d7e2c236e7d4cfbcadc51cc37. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T14:03:35Z), 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/MYNS10730056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b47b6aa8f9a0f074edb8c95629d5c3170d6c212ffc1bcd203e97e58d7f64b3c. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/MYQY11700011.