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 0x1c7308ef37fd9d3fef6a7216390ace1af4ccfc2dc5825d5d42bc28979ea53793. 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/27527075-44cc-4a08-9003-71a5e5ffe253.json and https://artists.proofprofile.net/proofs/artist/27527075-44cc-4a08-9003-71a5e5ffe253.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 0x4f31efedeb6c044f45685074fb4c56f28902417f5533779128307d26c1f33f78. Chain 2 (Bitcoin): anchored in block 957835 (2026-07-13T09:48:24Z), 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/USRY20411525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaf4ff91949fd5b32de14814fd4f22b567e2378820a4c3f8c4a77e47788db506. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/USRY20411527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68a3276f5ca6809ea0d94c5a87c39387ba98b292dcc21a80b2b5cd5e6ea25ce9. 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/USRY20411528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e1a5ea31678cc0477a17f62f266341073385295626ff1c06acb6ac0106589a7. Chain 2 (Bitcoin): anchored in block 958667 (2026-07-19T05:04:54Z), 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/USRY20411529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1209273900cdd11846c6ffa7a8e35cd5ce5450ca69b22941e2fc541cc4665d6. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/USRY20411530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecefcd939386659536366e0242d05b71eacfec5894a019fc9a764e929b3c1d93. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/USRY20411531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67486f874b466e84abeda4d3c60ca5c05d3cdf8e22c1fd6fc14cf7c49c2f6347. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T15:38:39Z), 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/USRY20411532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x370bdcf8aba66371624cd41ef4639c1cccff4dd2dec9b0f256c0c04b8d007ad0. Chain 2 (Bitcoin): anchored in block 956396 (2026-07-02T21:01:51Z), 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/USRY20411533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa793e2f93256c4287b45a5937f00e490cb8be6554f56f07f886cce73d76539fc. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:58:10Z), 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/USRY20411534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ad69650b1836f7e898a522156b1257e15cc1e6dcce65a6518fd73808881b138. 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/USRY20411517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3cbd4078f7caab9b36d676a920c7a6243501af1eb2742a22be82dc990d40b63. 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/USRY20411518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7ebcf1efdbe338905895e4b6846dd5594d6591fe56c42f3d0d55e36d33c4f08. Chain 2 (Bitcoin): anchored in block 958681 (2026-07-19T06:14:54Z), 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/USRY20411520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9764116ae41c4e84fb2d82bc8fac380378d2066694107cf4f3de21913a501de3. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/USRY20411521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x438de5a8709b650646a24eaf490a45363e4d38686b5501835bfde97cac9dd4e1. 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/USRY20411522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac3c308685d2b9cbe5408129922a3013aef218d60abfe25316d1cc8045102ce3. Chain 2 (Bitcoin): anchored in block 957620 (2026-07-11T22:32:56Z), 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/USRE10000714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac8c356f2c69d5b2185e2e62efc3d30de25c3878e26482e0f1baa2f39d3edb01. Chain 2 (Bitcoin): anchored in block 956396 (2026-07-02T21:01:51Z), 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/USRE10700379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd6775415bb98d6ddd8557b903d433e4441e51bdbd178b7544ad4381689bda37. Chain 2 (Bitcoin): anchored in block 957633 (2026-07-12T00:19:47Z), 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/USRE10700380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeac5e96175ac93915238dc6d0ffc536c77391f087effda33a97e8d3bd4d27cdd. Chain 2 (Bitcoin): anchored in block 958473 (2026-07-18T00:52:36Z), 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/USRE10700381.
Fontanellette - 2007 Remaster Live @ CBGB's
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb16eaebc3a12542711f238ba7d36eda51a499232707580e721dff7586c312e6. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/USRE10700383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1eca2f878442f3c6854035831e40b033ba096f41f49d4da8e39d4705d7a137e2. 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/USRE10101317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c0349e5a2035092cd178aca743f5dfeeef739219c9b3a3e99a61799697f4605. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T08:59:12Z), 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/USRE10101318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x955e43c55d1c80a4de20865ab14300370318c19d13b3f7f023428982adb27bd8. 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/USRE10101320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6798b432f83f3e1f2aa73d83b513df5f3d8ca2af226bc35036fc37097462aa6f. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/USRE10101321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x417b52d9cc88f514326384bb5e52361a600e2a84fd359252bcf1365f797b1c54. 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/USRE10101322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39e170a53c87c586fc0bd35b4cdef6fd18250a9326a30be621fcda9690d278c3. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/USRE10101324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa368cf98b83b2548120bd8724ad45bd9f51eb64ae4c059205824d13446b8e515. 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/USRE10101326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc49729067ee078b9a89d9c2c0ac45746a5d9c78c189ecc75f58fb2050eaf19f. 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/USRE10101327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78e206107adba89f8934f774ea9ae4fa66a9049528c2c4844ea9b6537d85d8c4. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/USRE10101329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a6b31f226b1adf304da9ccfeb96c20a74ad2759a1ad2f9885b4aa85a300b441. 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/GBBLY0100024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e74e4a5b9eeae4eb416ad4964b463dce05fcc3bcb88b5824965ac8f743f7b17. 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/USRE10101319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7db3db4957c3f2ed40c098a7db17c239a7192257b6abc41dc9d4fa660a712c1d. 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/USRE10700378.