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 0x80d0b401a4c973c4a55754dd09a1f3640fd891a065dd98f6a7b6218022e89d63. 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/1e2e7673-42a9-4d40-b8a8-b846897470b7.json and https://artists.proofprofile.net/proofs/artist/1e2e7673-42a9-4d40-b8a8-b846897470b7.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 0xb632c244152707ff5c5f9b4b37eb1e3153ae91faa629d7e4d4790e56f8406dc4. 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/US7VG1465877.
Una Conjuncion de Imagenes Muy Locas (Chacarita)
REVOLBER en VIVO (2006) - 20 Aniversario Ka'imonomacaco
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadd913a21b6089ed9f6074e7574b5ceb8a3b46c13938abbb1a3978cca71c0aad. Chain 2 (Bitcoin): anchored in block 958329 (2026-07-17T00:25:51Z), 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/ES71G1514672.
El Sacoleiro Magico y el Parlante Churero de Asimov
El Sacoleiro Magico y Su Cuentocienciaficcion
El Fragmento de un Pasaje del Guia Espacial Fronterizo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x692202e95565e50d76b564376c65e8cf632bdc54a231a45075f57a520b5dc86a. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/US7VG1441344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c6d9f2a7dc031a81f9c6afbc9bfb175645c752430143cce3fb75982d16a36fe. Chain 2 (Bitcoin): anchored in block 957558 (2026-07-11T11:36:38Z), 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/US7VG1441345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc75f73f71b08e28a14f8a16c91e699a53598fcb97c8fd54a13e6db513b435a3. 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/US7VG1441350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea23fb06c965b6d26be0b8d8d21d4f9e8f62f3fe1df3f278c4e183eb015bc10f. 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/US7VG1441357.
Auténtico Rock. Grandes Éxitos del Rock Paraguayo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae04c6bc6ad80fe5c9c0a2f99dd08d79951ed13a5451fff5779bfe3e6dffd347. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/ES71G1608550.