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 0x4993b233ecde95acd88273348bf1b81cbc77f3fe27904f5f9df1e23914f55b51. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8699070e-883a-42e8-a89d-784db6b48816.json and https://artists.proofprofile.net/proofs/artist/8699070e-883a-42e8-a89d-784db6b48816.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 0x49f9e110ab6aaad46c3955d649093a564bac0c18e2f294eb4f844a25e5ed4c58. Chain 2 (Bitcoin): anchored in block 957026 (2026-07-07T11:02:43Z), 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/MYLR11422355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f394d3fc195e081494b1983166131003b96117f21847d3dec6707fad858c048. 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/MYLR11422255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72a3a81741a264c17446a5a6797569ad1262d78e3c3dd4d4b8a105667193950a. 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/MYLR10820094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a32013944323e19650f1b27e3bf500408440f36aa1206b6b37aaaee0e205555. 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/MYLR11422235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fa534bf4e0ab85a5343048c8844999e6689f0b65c9a29fa89ee0904441fda14. 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/MYLR12020026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x038bb281a496729d879924ef9e64e523a0b9e60b1e75cbf40320340ac32d0fa8. 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/MYLR12020027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c8fda40117fb4358cbfdc06fc76b71b57812aa5de8ae84b6cf8c314b9c704d8. 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/MYLR11420388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x644fbbbfa19c2ebafefec8b95deacaff551caf63de1bfc84a046e77544da59b0. 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/MYLR10820095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbd20e952c18566bb4f0ba417fe99bdcd9c2c0ad5a331f2b8ec80d0bf6f53033. 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/MYLR11422135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x799d4163585717de56e2d4df151da406525ac2f6fa85ddcb7704b98fdfd0248c. 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/MYLR11422114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca9db31830a5536914c134bccb5010b6e4ca955872e68a5a9ef6b2b00a9bd9ba. 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/MYLR10820693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb794c4ddafb8faf39b2d4b1972c5fa26519850b5d5158590773adfc8cf4d0fe. 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/MYLR11422159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedbb70022bbdccc9f69f55fcab6c79a4db1103c844d9dafe064d67ef627688c3. 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/MYLR11320184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84671fef769999a7b07ae24902a016eefcb69b2eaacc2f2614c9f023fcd80650. 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/MYLR11420384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34ac479cda91fa6a003103c4e08714ef16efaa6891220a0a18becb74345ce4aa. 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/MYLR11422143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17a7787c7fb84d57e9ccf0757acabc4e303b7f4a12ac8a7f08c1b96f50732b39. 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/MYLR11422111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1db575c6fc666c34effb310d49fd1358bd568b56184e045095424c91238f6c7. 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/MYLR11422351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fc28b3be5c7af59e5fec5bbf8d8e589f5bc84f119ed81b932386a08bbae513c. 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/MYLR11422112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbca74731f1d306c8786aa013f12d821fe9e63d0d31f965ef1d612d3221d0101d. 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/MYLR11422294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0a78716c682d79a08696b3060d43f44e8c03795de35259548429aae823b8d2a. 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/MYLR11422337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d0245e2004bf042df642689a2b240e94b089fcd4cfdb77e7b80eff3a4dee1e0. 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/MYLR11425102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x807cc5b80bf8bf123b515b629583ac53e028f58b0928c77b446b26cb126166e3. 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/MYLR11520799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8881e69ec78193727dc60a3b68248f3736c9550d4bdb72236f092d0db148a5d6. 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/MYLR11422182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56e548ea8f56851ccb4016e95b40a09af121ba5f72ad58b8086b2ba44de85c77. 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/MYLR11428099.