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 0x791ef41de22d5d41c6dfd7b172ee6abab49495234b5cc0fd33a268dd988c5902. 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/209bf223-e9ad-4ddc-8c2e-7a79b15d30bd.json and https://artists.proofprofile.net/proofs/artist/209bf223-e9ad-4ddc-8c2e-7a79b15d30bd.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 0xb6d80b6fa336ecdb428b5ce737120f6b71fb5abdc01c8f17b0905fcf1ba53491. 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/USCA20702063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55c1cc0ce94118d9e9b2c4f163589de70cd2da1f74e8b32dbd9fac35f34c30b7. 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/USCA20702064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14e0931c71d2a7a16d6d8f50f24c475fa2f62e3ae27cdb94ead3f4581c09d947. Chain 2 (Bitcoin): anchored in block 958708 (2026-07-19T09:08:25Z), 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/USCA20702065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x319fa8b926975f1cd0b28009d6a83e2267e552f9148eb6daf4ded986b7b9c659. 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/USCA20702068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4519d673de4c9b8d955b42e1afb6152c4c9d2d3e3ce5fa9c284d025c169bd855. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T19:02:18Z), 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/CAU111800471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4519d673de4c9b8d955b42e1afb6152c4c9d2d3e3ce5fa9c284d025c169bd855. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/CAU111800471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd29dc8a92d8522bcdb7d323aa81bbd3afe98d79e420ee6561b0eac70d3d40d44. 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/USCA20702071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc00a65e81a1bacf1d06d7cebd51fc2b988f8773d9a6ae29f44d774911a9d3ba. Chain 2 (Bitcoin): anchored in block 958504 (2026-07-18T05:41:32Z), 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/USCA20702074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb293fc0594249a7620ea68083d81234a1f53501af835de5b5eccf35727213918. 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/CAU118501956.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbc1c107c30e02255f75def55fceb39396c0837a687994bc2fc46cad5b1d7dcc. 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/CAU118601996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1530c376a8ac9edfdcb1b4af659f7c2d7898b8542ce7596c96fc61e98c1af9ac. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T08:36:35Z), 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/CAU118602000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cfed5f15a0f9c44e0bb3c91e186db93176572137a499cce78cc9d2882d3e969. 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/USCA28600575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x594fc8e73acf32a5d2785f5d1d83ffc3c47dc868a45c4238cda295294c1c098e. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/USEM38600090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06ae2f407b3f3931d3014d8a71a5483bf0e3d1bfd3f8d41b8d623236d7f982da. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T19:05:10Z), 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/CAU118402023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x372f889dfceed3b6594d17481677e92ef873033ca675ddef6a04095194f15a97. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/USCA28901666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18b8b615a1c080f5062de8f37bff5e57b0534f0dc25afb31804f04dae46bdad8. Chain 2 (Bitcoin): anchored in block 958410 (2026-07-17T12:18:07Z), 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/USWB10705385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x372f889dfceed3b6594d17481677e92ef873033ca675ddef6a04095194f15a97. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/USCA28901666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d02d6b6afdafc5939f4d51f52f374692ce647614b6bfa9251ff5a8ab5ba595c. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/USCA28500411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x594fc8e73acf32a5d2785f5d1d83ffc3c47dc868a45c4238cda295294c1c098e. 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/USEM38600090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d605ea2e50bbbe9fb4935868dae0133497f44576d5408bc8d1005002bffee3e. 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/USCA28400177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x841c38f0170562ce3375b86b32c2ca98b55a95ebceb38db6294c33e10d23f533. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/CAC229600052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d2f1a41e3fe46609c6e5eb2edb2d1111391c23a341e5a11782d293127f17fd2. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/CAC229600043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe24158b3681e2cc08e43359dc89b6b0a23a9932f61bc7216a1cf08af0d480425. 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/CAC229600046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ae8d3e072067ac85c53b9a4e17c3ca5dd1341c6289394a6e22166f430d21905. 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/CAU118401755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5655de1ee1925b880c295db4b9f938b30190ef44a257fc58c71c2e4ca5446b54. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T17:59:52Z), 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/CAU118501756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaaa3280267461e6ea192d77ad6d12dcab93e8b9923a54a645517036c1d58191. 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/CAU118501757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0cc9c767f9705c96c1b43a8439fde897ce45c508a039af564b866b79ba61259. 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/CAU118801759.
One (feat. Kim Richardson & Jonathan Roy)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4033cac4bf945edcfaa80b05f02c590607c3c1780f49e7461fbaabd472bfe441. 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/CAU118501955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ddb2162005a5f84af8a6a84aeef093d1667fa7b3049944fdf0b0e67df55865d. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/CAU118501960.
Another December / Dreaming Time Again - Single
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbc4faf0f35871ade867d6e4416eb609876ef876877081e28956297be2c6757b. 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/CAW111900093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x362afa24b0f41124e29be393814f34db40116b20f9ef3dbd2d8715f43b9a4ec9. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/CAW111800674.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee565fd9b388d2801dbcdbca9b229cab36debfb3def5caa5a0c1710fdd925639. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/CAW111800675.
Tonight (I Wrote You This Song) - Extended Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee565fd9b388d2801dbcdbca9b229cab36debfb3def5caa5a0c1710fdd925639. 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/CAW111800675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc46daaa0b4fec6a0928b780d41b116a8818c6d235331494634fe878d0d659972. 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/USEM39200147.
This is NEW COUNTRY - Top Hits - From Nashville to Austin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x450712b5666de6dd86bbd92e4644c0e9c7f65b70275b640a63ca4ea9409b5dc4. 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/CAW111900145.
Stranger Things: Soundtrack from the Netflix Original Series, Season 3
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1a5d04f5fd93ed083a8e5755ca51ee4967aa8a7a1eb02b4879cd8fbabba2927. 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/USEM38500068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcad2cdf6e0768ca3d58e44f9ddfa9dcdd0d76525996b8ac58de8dabf9c70a73. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/CAQ522154003.
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