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 0x90c7b7b3d70f3f30c38a615d3e9d707f3d518cc3aa2f41ca6bf45d56e4239490. 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/d250cf31-906c-4014-9e15-cd158d1a1336.json and https://artists.proofprofile.net/proofs/artist/d250cf31-906c-4014-9e15-cd158d1a1336.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Gabriela: Cravo, Sanfona e Canela (Ao Vivo)
A Santo Que Não Conheço, Não Rezo Nem Ofereço (Ao Vivo)
Eu Tenho Orgulho de Ser Dominado por Essa Paixão
Vida Vitalina: do Barro, Mestre. Da Arte, Legado.
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 0x42a26c56dca9d79c2db1a2d6288c00f58eb4b22eb18fb45f45063d7a68fe0fc4. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/QZHZ62294893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c6ac0589685ba01c55b5197e8e8888a8a20ff379b178cb24db7c3269dc869e1. 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/QZHZ62294894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e2935314699b520d3017971141f78401947fb63c642f83eff905a62f6fcc358. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T05:08:23Z), 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/QZHZ62294896.
Imaginário Cariri - Um Oásis Cultural no Sertão
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb451edaf59abfc4582bdbaf3129d135600efa81f3f774834b7216446e1b79278. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/QZNJW2316157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ec23ac7c919931f69d07f35677ad22eb4616bb44726f5bd0e2553826e61cfab. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/QZNJW2316158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x316e19f202aee392c183274d44b4c9ac409eb893973b5bc74188726a385e39f2. 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/QZNJW2316159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfeae9fa1386a6a2770288efaa9d84cf49204fe6168398225da32a61929aea66b. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-17T02:02:12Z), 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/QZNJW2316161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae32d06fc1c4fb436d965ac0f7e27f8fe36f460af81fc2f59074ef73e0f82559. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:42:16Z), 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/QZNJW2316162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x492a6edb2b4b7d2bd221c3cac6323b1b9599b8e998567f88e8e7f72c5513339e. 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/QZNJW2316163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91e28dc142e53aca1c3aaeacde1c0515c877e08f5c6f31dd4cf85c168c5ce1f5. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T03:56:58Z), 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/QZNJW2316164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b834a87b67c04285b92a236dbf698892f6a445350feeaa93dabdfd10fa95725. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QZNJW2316165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8544391b776af7ddc91b7b851b70548e115681c54c02b228b7de886118dec6d5. 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/QZNJW2316166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8533ef4f87c37d956c73048296972815af62c66926c0805b592cf7e89deac09a. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/QZNJW2316169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4825c5be16763eabf75f90dfd3cbcc26e257ac2d3e904cb3bbf9addb201ea47f. 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/QZNJW2316170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ac65bdd882fb57be2beef7725cddc3041e4e64e45009a881a5cbd80e1baa80c. 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/QZNJW2457182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x039147f966fb2c66bf65ce1a9b52752d832a0c62c44bb34c9e55d4d3209c554d. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:25:45Z), 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/QZNJW2457183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x479d60f90df54bd735a1239233c91a740728b016655a784b965ed055506e0412. 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/QZNJW2457184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fc6a66aecf3e1108a1f3d32b0bcf7d0a16cdd56650b3afd8d485beb5a5b346b. 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/QZNJW2457186.
Solo Rainha (Guaraci) – Paixão Nordestina
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9553fa3f80fc7d443f5e368069a7d3895de52a571626a7b3db203c9ba842a797. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-17T03:01:43Z), 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/QZNJW2457190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39620bf4f1584c92262aa3894bbbc4fcc1e8dc5bdf100337050e50de4ebd4352. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QZNJW2457191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x711a67e0d9404216c27d0b6543f0dd10549a328e70bd161e53de0901e0a0d359. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T11:03:54Z), 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/QZNJW2457192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x266fcf36c6e9e5b3a41e33da0deade90e37482fdd291cd7e45d35e02204ba2c1. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-19T22:26:09Z), 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/QZNJW2457193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a7eecadf8d7fce5d409fad950759b4604e56b7f30c0521a3a7d240bd4ea677e. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/QZNJW2457194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5a3515ac6b7dda4087fe9c8fff28e1c779c06f0737844f3494aa4de7ef6a05d. 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/QZNJW2457195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49c8198fa18dc069d4c25ebc46df7c528b822ef8449f6535e2a536411e2a28a6. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QZNJW2457196.