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 0xcf67e6858275af2ece8627ca6d5303cc21f19b84c9c90ab3c86df5ef62f4698d. Chain 2 (Bitcoin): anchored in block 953633 (2026-06-14T12:47:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/35827261-1025-4570-8baf-a3d4c2317c42.json and https://artists.proofprofile.net/proofs/artist/35827261-1025-4570-8baf-a3d4c2317c42.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 0xb447c98d4a437aad039fb2b6e5b1f5524313da30d76c8a67b92bfce0233a0ea5. 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/IDPTL2590008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6f7a6592f09455f71dc7218f8f9f30782974467676e380180d3e33faf4656d0. 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/IDPTL2590011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02093c1d5c40bde542f1a823b8af87222065630efe6562bea350f73b09bd970b. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T07:22:28Z), 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/IDPTL2590014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf521e8af3c352e59a7c92fae0677d9f75e47596306922917c19a499216e9ddd2. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/IDPTL2590016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf521e8af3c352e59a7c92fae0677d9f75e47596306922917c19a499216e9ddd2. 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/IDPTL2590016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e7bfbb522c02e68771dd6d7fdfab974ca5fdafa274e164fcad353313381012a. 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/IDPTL2590019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e7bfbb522c02e68771dd6d7fdfab974ca5fdafa274e164fcad353313381012a. 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/IDPTL2590019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x709e12b4c9c66d37a58550479cc159256ac5a36d405e265aefed0c9677786e04. 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/IDPTL2590020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56d496eed36e3febfeb299a1c16f814f839ceebd05349289c71ed3e18f13b0be. Chain 2 (Bitcoin): anchored in block 958087 (2026-07-15T02:56:49Z), 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/IDPTL2590025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26200f97bc7bcbce0dc7c1b7e5187480c0ee36876b7f98142a726f9a5ba5e7b0. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:38:49Z), 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/IDPTL2590023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26200f97bc7bcbce0dc7c1b7e5187480c0ee36876b7f98142a726f9a5ba5e7b0. Chain 2 (Bitcoin): anchored in block 958793 (2026-07-19T22:59:45Z), 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/IDPTL2590023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x648bbb5c174dca67b60984fbbb521f2d2bee0170a8726808805c4e9882c7733e. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/IDPTL2590030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3af4c218b87e4e7b2d8edd8d6b2356c220560121fa5f9db67f8724fbc5b85e5f. 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/IDPTL2590034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3b359b742f2fd7d26e5f78177751256898bdba6b7bd70b6cd7cbe2c4d38ecef. Chain 2 (Bitcoin): anchored in block 958095 (2026-07-15T04:30:08Z), 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/IDPTL2590058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7965d027cd8507f957f557852ca745d9486e29e32a85b02beebc1fbfbba3ba28. 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/IDPTL2590070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e30474a83a8dd372cec822111528375c6aa6f1d733ed736bbfb5296a3bc714e. 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/IDPTL2590071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce557f98bd86ba615f92aabeb26e3de61caceca6b87eebf0ce82141cae71fbdc. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/IDCHD2590065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c9344e017193bb8939eda505e474b76ee2b227496cd491e5863ef49fc10c227. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-17T01:00:25Z), 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/IDCHD2590067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b62d4a2fab14e6f0dd03f7a16090799d1a9ff519cf2951633ef95071cb0ba99. 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/IDCHD2590068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0e76cd7b8c177146379f570089b4e32b031101894e5fafb7da6480546bb0b15. 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/IDPTL2590072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f9756cd181e1acd190b195b07a08dd902527e96a3bda99aa039ea5db6ce52da. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/IDVKA2590121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7e77ce32cb943012b27753d74e7b77344f13fe85029d8a622a8efadca6122be. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T02:55:37Z), 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/IDPTL2590082.
Dubidubidu Oiia (Chipi Chipi Chapa Chapa)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0604ff3eab6e5fcb4d474881cefb2b3a799219bf00f874ff5318889b6482e0de. Chain 2 (Bitcoin): anchored in block 958834 (2026-07-20T05:55:47Z), 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/IDPTL2590093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb6d81465f5250692e089e351b8e18bff2f32652c9d60af75f3ddaa18e1700c8. 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/IDTNQ2590014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbad3c8981eacb9a572beec98de234fb8e3399510137bf34a4d7a383cfbf5bd75. 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/IDTNQ2590021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc94757f30251ab4cbbe5d9b7eac480021d304193fd3df64731b7e2722089af29. 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/IDTNQ2590024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ae012622c5e2a8a1c5e73bead980a18654d1d12a53789ee48860f636ecb25df. 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/IDTNQ2590023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76f7bf1003cd0ef94ee8f68655b9bb9bc93f617e5622298a33120cf99bd7463a. Chain 2 (Bitcoin): anchored in block 957785 (2026-07-13T01:55:31Z), 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/IDHVH2590033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3308985b3571562d0212d4f9c606cc610291bca2163255ecc2c9069c0e528f8. 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/IDHVH2590037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d59cde68c163865d63a051628c81f0559730ffba23a7b1c589a7b6d3ed193f9. 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/IDHVH2590034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5807e366bd0e5a8ce5b3f99ba94e96335712302e8377c4d9fe0a4447c6eb3316. 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/IDPTL2590097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd94f18ce1766b2c1321312bbd7c293b535a02838f7431fab2ce4c3f52470b3d3. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/IDTLC2590002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbdc3e2f6ebf8f3c12961baed384717915ac068f0e047be342797a8a2fb33d78. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T08:06:36Z), 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/IDCHD2590193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbce665a0557f14dd4098f7865d45b40689cf1057ad71921e1d0d1e0307ee9277. 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/IDTLC2590003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05b6165ce64d12e3fc1c5a1002e959e7a0c97e3a6f4446aeaa031a9d9580667b. 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/IDTNQ2590028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9f58a93683ddc6d1ae2b2a218230dfaeccfeab3c4fa7a21c9aa5c20770a90ba. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-16T00:22:05Z), 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/IDTNQ2590030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f3669b02ff9d2e87c2ca37deb67088e6dffd50aae900d68e496d20327b80285. 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/IDTNQ2590029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a7fc407b7e9c1f63b11f85d8695acf6cf5856bd6b03f929747c150893b6e4f7. 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/IDTNQ2590033.