1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0xd1dfe000ed61cf0098d27a91948aad72d8ca2f615da4949edd8ca61dd92023a6. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7ae667a6-f3b4-48a2-8732-f8254fda4c20.json and https://artists.proofprofile.net/proofs/artist/7ae667a6-f3b4-48a2-8732-f8254fda4c20.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 → block OTSBitcoinBlock must exist at that height 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 0x070ab0444a150fabbe5708706c6a1ec1baf8fd94e1228cd423f4cf3d2e1a17f6. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T02:44:25Z), 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/QZEQU2204110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0a1f8a1c7fff959b84eda5d7419edffddd5c396339cded4faff9c26ad237bb0. 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/QZEQU2254750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda44a15be4bee4f42f9c6ad670f063e156f43dcb9c5c581931b778ebbe81001f. 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/QZEQU2254753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebc76851e0498bc5f1f84df9f71142d9475e4e5ff97cd93779afcb49b1d7f1a8. Chain 2 (Bitcoin): anchored in block 958587 (2026-07-18T17:06:26Z), 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/QZEQU2254752.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80efce788456a2f6d969ef3e9e34c36f63cf5dd3b8c1283d1c6e23c6e6aa9e34. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T14:11:00Z), 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/QZEQU2254754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19e900de26c4db9872ff73b1f5237f6fcaed35a8705f0dbb8a9547c7971f04ea. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZEQU2254755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cb04c821a4332dd03c6396ebf6418b6c21036bb788c4a0e8f6086428ea05410. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T01:57:58Z), 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/QZEQU2212304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71f4cc7aec225e6e88e00b5ef09cca2953e863a8ed419a6f7365f03383d9f879. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T20:38:50Z), 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/QZEQU2222241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35b6edc2486c5f9dfb3deb3bd98cd1cd6bbc220a6cacd41d7e30ea29f09dd09a. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:43:25Z), 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/QZEQU2257449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x805653762c03104176c128612c578a91c07c362dc799c2cae6065a87237f64f1. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:40:25Z), 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/QZEQU2257457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd65c8cd5f79fb1b99c93f4803d676f771bc00252baa17f5871a55ec29e73958d. 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/ESA112311646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a85ec315ef2853bcffad274e5a9140e2b5083de278bfd40010db4845ffa7ccb. 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/ESA112311342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc29a278c642aa966fdaf47211e03763a5544cea41596da58b3d672f30ffde53. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/ESA112310406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85e83550dd26ba2f06e180646c14a2ebc7accc661c9edb6b2713a478cd5ee7d6. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T16:39:21Z), 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/ESA112315496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x944ba85a9f4f60c557abbc389eee8fb2d4bcc2cf27c31dae7acb1359d28530b3. 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/ESA112315509.
Medley o Erótico 1.0: Foda Gostosa Até de Manhã / Bota o Halls Preto / Joga a Pepekinha Joga / Metendo Tudo / Bota a Metade / Tabaco no Chão / Amigas Falsas / Chá, Café e Tcheca / Nunca Aceite / Vai na Varredeira / Te Maceto Depois do Baile
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2385aedd77e3c6939e105c2046a18d91939d7394ce426911742be7906d229770. Chain 2 (Bitcoin): anchored in block 958568 (2026-07-18T15:23:47Z), 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/ESA112443225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecb84f7229896a4256d5abcb79a255d037a68a88746d0bbe039621727388b130. 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/ESA112449528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8c454e4bea4a4be48597c87f18f353f06ac77a9c6feb953a1d7a4a4cf5e2f75. Chain 2 (Bitcoin): anchored in block 958644 (2026-07-19T02:21:25Z), 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/ESA112449529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75783d07825f9aea0146de6709ba68c0383ebbd5cc23a1bd2c0fa22e1acba1a8. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/ESA112449530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa17a08fa03d4790fed13cb53ba74af1b9b5b962f0a8bc3726d593f0441410ab. 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/ESA112449531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37368905bc633c06c4e59df5c7e54633cb910f3a0cad8931dbd4932e6b466f68. 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/ESA112560474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32f335895bcc01b636eca32bc391604456b39d77dbf27807c04946da992346d2. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/ESA112560475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d4b6e019b0c06afa0ca44fc8838de3e23d4fb4e3380f8b1ff1a029519c5914b. 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/ESA112560476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35f60396c4b7b8adf0f237ae4a9b67ed7f6d22f10a6e944795bb7da686256aa6. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/ESA112560477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe93a43e6b4fee92e6aedebb17740d43afd4299dc1ac73d4dbae8142104812d6c. 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/ESA112560478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4aa74f4a49aa82064836a605066ee8d64388b96edc57e73c6298d347ccdb4751. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:30:22Z), 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/ESA112560480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9cc94f988a459bcb634e131dbc1608c1548cd1ad531037a7c3245b52f8e2133. 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/ESA112572961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dee83f363b00b67fd9744f1f48b4fa95cfa4c7552599ae3f303d64475a6571f. Chain 2 (Bitcoin): anchored in block 958476 (2026-07-18T01:26:56Z), 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/ESA112580790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f8668747a4b5d8513734910a985212006669677adaa3cbb2ba1dc899a2470da. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:02:25Z), 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/ESA112580791.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4bf9101dbffe9c1a23e436a95be5c782e7856212bd88fb63287f95c17fbaa14. 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/ESA112580792.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93cef19b02ccc93165cdb35c34167974672919dc0192f9c7b1f77b11a37ba9a3. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/ESA112580798.