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 0x67282f147a3905e920ad34a3198b606ad7faf51c5cf1b93d7ff4e13f823168a0. 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/f0d30bd6-7af4-4c56-9c86-824ec05710df.json and https://artists.proofprofile.net/proofs/artist/f0d30bd6-7af4-4c56-9c86-824ec05710df.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 0x07bad77b23b453cff83d9e533b5ac114299ad0b6e07604248efa260f8d8f7cfb. Chain 2 (Bitcoin): anchored in block 958776 (2026-07-19T20:11:59Z), 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/TR6230800333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e9c3a1d3037dabf7f6499bc4df9959c04f0e3f13017886cc8141c128b7746b7. 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/TR6230800167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabdcaecb85de8b6f89926296c4969faa1ee686155cb907cec14b26f8d1b8ca89. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/TR6230800170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x572d20c24f80028c1c09779d7c6435d6964ece165512848f4df4b9a0d05a52df. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/TR6230800171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb073a43b5ebe43f016764aa162796904f5c3df624170942cba73be743dfc6971. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/TR6230800172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c3c05866ea39418aefb45e8aa131cc57ea55f7797d27e417c641bfc0c0db59e. Chain 2 (Bitcoin): anchored in block 957867 (2026-07-13T14:55:20Z), 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/TR6230800107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02896ecb3aec6d9c59a18af70e7ae551c258b4ae8c351027e4382e1c0c02b616. 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/TR6230800108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x991c8a425962b1be93ff639fb4537ec1a2f245a45ef00316916d26b98c0824b3. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/TR6230800110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2064acd1d0b5bd9cc209b938f4aad5b4018d4363aab689f45b84486379f7fffa. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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/TR6230800111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34f83b1d65af6726aa3035018c178bcc7fdb767ded7798d4d7a70140a74d39bc. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T12:03:04Z), 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/TR6230800112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa35487fae8f05e8db025fe23b34040acab0da620c377fedd6d1949d61617c948. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:00:07Z), 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/TR6230800114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cde0f2f2ed45eef1c991741fead024bae2b6464861863a1e0affb7b43261d81. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/TR6230800097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d26de30dba3fb8f71ea05eaf16a0a2cb12b04a56694a22a86f577b62082cbc7. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/TR6230800100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e671fcbc3b59fc105871ac02de89c9388801009797459cd64b60d572c2feb45. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T13:04:37Z), 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/TR6230800102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb02fc102b6347021c32b25ad7f10afc3dbced49166405b79e320aed1bf5187c0. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/TR6230800104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48b147383bf71743e896783a399fa7fdeb69c3260056c2487583fa515e938088. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/TR6230800071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e54cc802fc936b828fdadc280938fca92c2191ccdbeada75e688d403f5818b4. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T05:05:46Z), 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/TR6230800054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36477108e4d702077dbd2883d6e024aacb87cb0ee8674352e768a0dbc4446451. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/TR6230800056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd964372d404cfc42a5edd77bdc4e5c00340fbf8bf5a31fd79d9fe9efeaa2fba1. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/TR6230800060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d4acf3ff23209de7e3e1ab23740648b15bc9bebaef1e587ad43918ccffe6cb7. Chain 2 (Bitcoin): anchored in block 958325 (2026-07-16T23:59:10Z), 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/TR6230800045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb74cbc2f3e430b6885ed73d0b82b9b7e2a98440cc3ee8d38c0b424845ca342a. Chain 2 (Bitcoin): anchored in block 958508 (2026-07-18T06:27:01Z), 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/TR6230800047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x456c17a2007674c1ebc2c185b12ca1dcb9967fbf608af72a95785c646cdc840d. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/TR6230800048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc79107a33aa17c1eab8df5fa4c5ad63a7441316dc5a1d86ca9afb8d63c0ae13. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/TR6230800032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6e9cfcda5adc961f39d0da1f160681b54f8e2919324dc2cda4f241ce196d50e. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/TR6230800037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c5455e9f1e1f8cb3d19c245427d8b04216395b836c9367c4d64665e15992c07. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T22:25:19Z), 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/TR6230800038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeedec940b8ad3da4b32857c112d96dde8bee89dfa33493fd2194fe54a0fc8dca. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/TR6230800021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e87123f4b47c6090ea0f7b6d67fd9bb98f353a7dc65d01003dc08c02df9228a. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T14:09:34Z), 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/TR6230800025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dfaced53c0b6ac1d2dc2e1303cd70ec2d64f379173f4c1bbaecc437693e861b. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/TR6230800027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e5abf9448eafb038c191706b03a1205cd399e5a2e80cb8ac5f1642b2164884c. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/TR6230800004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5661550b1d7ed90c840f70809cd156f4745b23681667806b182991cb2732f68. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/TR6231000394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b2ab4743055f6753f3d72e6c11f1a14809ad188b6a171289d14a08a9ff8f499. 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/TR6231000390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd397d105a0b81eb4bac3c517cd729606498402d85d20471dce4a5b13e5a40abc. 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/TR6231000395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd78214f11b851fba96fd18420609afd05a0d78641bd5ec1965387979421af861. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/TR6231100396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87e53e700435170fb06082f12a90a14415dce893014fce14dd8e8aa6d949d4a7. Chain 2 (Bitcoin): anchored in block 959088 (2026-07-22T05:03:10Z), 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/TR6231100400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc910254e4d328fd215ddfefa802074211ac37b3608a47854e8b822ca3e5ff508. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/TR6231100401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96cb1f589edf709e1b6336a2fd8946d1111852058fb2138181560ceae7a07adb. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/TR6231100405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e30f37591b848dfd409c6c643556a1f1d825bebedfb5e87976e414e216f2c19. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/TR6231900483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5f0e43f04511ecff72a2c394f95946612f09c54ba73661e12a83d81257d871f. 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/TR6232100497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf6fc9f3784d27ffa9e6a8917970a2ca40cb1d5aa0c892536ea81e15785345c8. 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/TR6232100498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c365ce033bb75b16e328f2d43cbe517d7a127329bfbfc407c6aeabb202a2a4f. 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/TR6232100499.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4c3e61ef13aca1ae4a1831fd744029ac9cc36613884714630de338d710f0e36. 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/TR6232100500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedae6606f6ce25e19bc9927a43d4d76954626271bb077528c9d3d30050be28dd. 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/TR6232100502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a8223b8974ad1a484710c288b5a618598cd06e6d643adb145e73468fa701387. 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/TR6232100503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98d645e8e7cb93b42b05997711b4ee7a862f2ad33acba2041c75d550cb5be35f. 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/TR6232100504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc55e481f69eaffeb31f43f1e0d6ef7079552549b3947f9c192da7ea7c644bfde. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/TR6232100505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53ef0fd9f5f432fc48c551f1ff7bcc0a6d3411739a24b9a869205698bfe163a6. 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/TR6232100507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66a3a54798c6c3342f4dc7fc1ef46b6eb59dbb858bab8c5e124430c431618137. 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/TR6232100509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x219cb10995acf2ee86f90f2fd99980373346cc7772ff0c2a110f21fe33a42120. 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/TR6232100510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf0a6057a340aea209ce9bbffe057ea5a321eb0809d983edcd7ce526286cefc0. 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/TR6232100512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf62cdbe7127066b38e39f9aaefe41971e5293e252edaf8d3cd2649902c84af02. 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/TR6232100513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x979529cfd10655bfa872481bee6c21dd9e0a9fefcf8c03f8f1aa0e3f142e3a53. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-21T21:38:02Z), 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/TR6232100515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ead58da11c68b3904c8923c40f51630797dc52c8d8eef726686a0bb1330e183. 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/TR6232100516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee3a73e771905120331911a57aed960cf4555af8a68af0e70615e883453e329f. 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/TR6232100517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7013be533fc8ef12b5524aaf7f5f4281366f029e3917f040bfc2a3e13cdc31a. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T15:06:15Z), 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/TR6232100518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84d7c1b54458eaede7207d28399575d8eb7f6017462d8fac7b7d42884d0c40e9. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T20:53:03Z), 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/TR6232100511.
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fd5506a382c5ab9270ac05a9224e61128d94022fa580b80c15fda2839e548a7. Chain 2 (Bitcoin): anchored in block 960167 (2026-07-29T23:42:34Z), 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/TR6232100501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x606e93c815248b5e1be0ca7b67e35f7147229324cd8d2b7485f5abef7e516127. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/TR6232100506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e517d53a636e9ec706a3897215ebee1405823c286a4096d9306bae31c1808e4. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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/TR6232100508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4b9d906d0a6e0810b577f0def1c4ca7372142ee4877a8cfc779e1a5bdb874d2. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/TR6232100514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c15fd3b2a011f7832512ad24cea2b83d29db83d1a435e26764cd48d1b11b033. Chain 2 (Bitcoin): anchored in block 960113 (2026-07-29T13:38:16Z), 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/TR6232100519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb2c39a766f6b1465b963f7965057161f690412196ebf0b2973c6575c419772b. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/TR6232100520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x814592ddc0a816f63c97b25c9fdca54fd4ee7a089c7736f0d68fbc968003c2cd. Chain 2 (Bitcoin): anchored in block 960163 (2026-07-29T23:20:38Z), 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/TR6232100521.
Ahmet Selçuk İlkan Unutulmayan Şarkılar, Vol. 1 (40 Yıl, 40 Ses, 40 Nefes)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf426933abf3c17e7bc9b14ebcee8f4a32645237e05fed2bd576791602469c004. 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/TR0391600259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6d905bf89bd53d9c011b2ff04d3de2b9f9ed605d7960b718281fe13d9834d4c. 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/FR2X42077231.
Ahmet Selçuk İlkan Unutulmayan Şarkılar, Vol. 2 (40 Yıl, 40 Ses, 40 Nefes)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f7add11ad2275e75793bea22f8a7297c36561c66797df7a7ed3908ccf12b863. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/TR0391600336.