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 0xcba9ba40991e7b49a97cae654156414a40f8f352a3fe8ebc38f3368721bd3dd9. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/039a7b67-3adb-4b15-9d14-32a477b7d8bf.json and https://artists.proofprofile.net/proofs/artist/039a7b67-3adb-4b15-9d14-32a477b7d8bf.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 0x6654c29469c8130ef1175615e17dfd52453e8df74d0f572741951b7dc59dcfa6. 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/QZMEN2311846.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x005701f7a701bfe2648fce6d44bc997a0262d15e66e12ad60b2caa049d072299. 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/QZMEN2311847.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x798b52f38755b364c89b72ad13d9f94d7225cc8a55995ddaf359d1903de9f637. 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/QZMEN2311849.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x346b6c092ed65b563fe6ee75cc4176dda95e87e1c919000e729f3b1c45e6bef5. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZMEN2311850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48923237452daf87991c043b7bf7a2932e20116482b7c3d79c38ce8aa2fe47b7. 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/QZMEN2311851.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7aa4be91d8902793050f96230bf7ba6f4c14a7e9d8e6d798ce9c48476bdda8e8. 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/QZMEN2311852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe3fa3f324e5cff9d76e3d8b90875bbe103035078dba108f1296fa2522324d2d. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:26:49Z), 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/QZDA82301294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57af61528ee32cdd106424ba9c6dcf48d056cfef8de7d34a85af2b2080bedbd2. 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/QZDA82301295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7dbe4f84a1b3e70b4dcc7288642dd54f6bd926c0cd8d8f39bf34d179eddea0f. 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/QZDA82301296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb921facbbdc818f4488351621b3915e0d884b1f8e75ea9f54a58a6b6abc12d3d. 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/QZDA82301298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb65b47a3c470431aacfc1929de311b2f2d71fe54dd4f2f86014ff0670744c404. Chain 2 (Bitcoin): anchored in block 956397 (2026-07-17T02:52:32Z), 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/QZDA82301299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8344d11e79fd28afd283e392c06edd14307611d5ec7a2dad566435b9b09f7981. Chain 2 (Bitcoin): anchored in block 956397 (2026-07-17T02:54:17Z), 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/QZDA82301302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44b119f78afee3356d12aae37493c5a04daea0996da1f18c8ceb7dd039828dba. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/QZ8LD1962683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9f8d8b6b54630f313c0c1ed4b387bcdbbc2e11e12b209d38f2f7c81dd46d464. Chain 2 (Bitcoin): anchored in block 957591 (2026-07-11T17:21:30Z), 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/QZDA51991950.
Dear JD Hall Pupit and Pen Braxton Caner RIP
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1700ae32305ff6f0aa9606402a8e67318ff119dbbf6a039ecde0e111c693ef6a. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/QZES81991205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda5e4a4d60f2dbb23d556c98bfdd321e0c647aeff1dc749f760ce535e79e50dc. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/QZES81991206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcddf8cc2f30ec36b7ab85c2024b84472819ea6bb2161af0a7c35c1a26669cf30. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/QZES81991207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bc1e25dc7b9626efd939b9d9117d1df869e8fdfed02e53cf5ee3393b1b078e3. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/QZES81991208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20e814f132c17fdbb6f2cebab1551c0f45d081ad1d14b9b05363cd390d2e5717. 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/QZES81991209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdef3423e6e125be8746541ef88a499162917635f65eaf6a987aa8359ebd5deab. 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/QZES81991210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f22c52eb6b5e08856c90d491fae5aebc84799642c84f13c4068d8898b9420ec. 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/QZES81991214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x757bbc8dbabb9596971ada6a464b166c51ee635902eef748932fffbf6b1673fc. 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/QZFYW1923568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5aac68918bd29acc0b8c3bb1b55e7865b2c74762c4594d8fee66d1fa1fe7388. 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/QZFYW1923569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58184ca4a111950c5d89a520d3c3c07e31ffdbed9fa8e184df78467366772c1f. 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/QZFYW1923570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0619da608fb771540c6d19c4e1053140172cec0014781316741b0ed73f2aebfb. 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/QZFYW1923571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaec2c0c22ecfaaa6a064dc52b9c79f0b1d3097915d4090050bf1e79240fe327. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:01:41Z), 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/QZFYW1923572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20955d2b34451c9947155fc60ce77a96e9e4b043fceec118d263f518c6c73c65. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:32:23Z), 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/QZFZ41944405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96067bc9dba6ff616503e34d6f3bdd3f44b3462aef03af6b80664f7ba5369193. Chain 2 (Bitcoin): anchored in block 958538 (2026-07-18T10:30:13Z), 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/QZFYY2195916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71f2834ad81a307b970f4a635fd225cdfb6309c8e781f1f35170839b4b5fffdf. 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/QZFYW2177511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0a70c739d7dcdf0e9695050e6e40264baeb4ac2850f79e5c7d8e171dd4a7f3d. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:38:20Z), 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/QZFYW2177513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa813069a05667a653bd0db8cc06e3f6036741336b1f2533d8abf6df425f5349e. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/QZFYW2177514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88b8a593460082b7d530d6db56a2436550034dcbe9e5bb582cc96c6dda77a611. 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/QZFYW2177516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd417caeef65a2965c603c7ddf9c6289811a7cd4ac86a41a117783636fd4065aa. 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/QZFYW2177517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf61ee9da2fd69c6d8ac637ee8d327817ec0b8315b6d2aeb9242894924964d45f. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/QZFYW2177518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e415a28e1a52e6dcf9bb9532eb3f0b83dfb7aee701100ac4e68c0e5d099b0df. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/QZFZ62121386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcd18ca423c6ec85a1ebc0a001804ab9752386d3ea60344f2e4b4ed22d944a8a. 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/QZHN92151273.