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 0x0be457e4b7a93ed7029655a9eaa61db44e10128a2bcece9db4e1644eacc94fd5. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9295b607-b51c-4cc0-a8ae-24e5a9502173.json and https://artists.proofprofile.net/proofs/artist/9295b607-b51c-4cc0-a8ae-24e5a9502173.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 0x585f98af40cee285f8975e25f94efdcaa00a398e4ca447f8fbfcf019c8651a13. Chain 2 (Bitcoin): anchored in block 957745 (2026-07-12T19:20:20Z), 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/IDA172427155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x528ef94d68786f711f8ce38d5a9b50558c0f9b9b550c541d3dc8d6344dc05808. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-17T00:03:17Z), 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/IDA172427156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0554b5de599236c33a8c2a16219a8f4d275931b778c17fdab78437b8bab45a93. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/IDA172427159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x454b09751852cec4d581f415566255096ebd8c2cad4026b1c84aa6ed657d83a3. Chain 2 (Bitcoin): anchored in block 957747 (2026-07-12T19:35:06Z), 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/IDA172427160.
You'll Have Your Band's Name on the Wall
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf4d461cf83f04ee5dbd9bbf99161ea99667362cf459740a37148fd0af55d799. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/IDA172427161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc2a12e9521bc88cba559f5f2d74a5e7399b9dd09a6e9de9305c748057f5ebc9. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/TCAFL2175161.
10 (Celebrating Floats 10th Anniversary)
10 (Celebrating Float's 10th Anniversary)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f1d43a4e6a310d7cb6267b204cee75320220b5fe9a96b3f4312b8cdab75f067. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), 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/FR26V1538861.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61dd78b7ee3674c22c8d573601389e44b62d80b38057012ff04aebf59b597ecc. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-17T01:02:18Z), 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/TCACX1708411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52c8e5fc7719eb9052bb3d8aa38036f44cd9b46490b248fe05a3d4d47393afca. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/TCACZ1731764.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ad244fd1d2d0d6d31a312801a81c9d55f1791e9a7faed8a95b7ee66a746953a. 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/TCACZ1731790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87480d29f380c32d5be4166b25092ef624abbb7d7483af90fc0830481e2be638. Chain 2 (Bitcoin): anchored in block 958397 (2026-07-17T10:29:45Z), 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/TCACZ1731794.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x366dcfba104e40a64802ad547565804443c95dc357227e936d11377045b3c98f. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), 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/TCACZ1731811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad586bd5f15c7464e068624ceb8de7f60f07f656409f71f2429ede2cc5954635. Chain 2 (Bitcoin): anchored in block 958554 (2026-07-18T13:17:01Z), 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/TCACZ1731813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6183f8a6fa66ae50ed13124e72d08bc70ac110907b1dadabf27480b82ef92a7a. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/TCAEK1903921.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa56c587a7d9f9cd6bc56eb7715aee8e274a2d6893d6a4a918b6a73ac5d654da8. 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/TCAEK1903923.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9754cfbee67b09f0f94c6e7ff80b17064a5df710f48fc33ca35aec457080aac. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T21:46:50Z), 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/TCAEK1903932.