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 0xfa92adaa2b4de59038c3301daa54f2bc1ef143b2301b394654be1ea1d136ed4c. 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/746656d9-0b2f-4cc1-b038-58630df9580c.json and https://artists.proofprofile.net/proofs/artist/746656d9-0b2f-4cc1-b038-58630df9580c.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 0xf2c91b43e4c13e211a6a873b3567adcb1bf797402d0e29d49afb32fb6b959ad7. Chain 2 (Bitcoin): anchored in block 958368 (2026-07-17T05:03:25Z), 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/ARF070700035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4b993257a2c2aa3134478dee595363f54f45f104cf1a3bab470bf67d69b3817. 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/ARF070700036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x237c0b5e230055087613a674a19852637d2b0bf68faa78f84582dfe7a0a81fbc. 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/ARF070700037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e8c883565459496b9f85bb64c0777dc30a20f308d1117597c101a6a15a64e81. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T01:08:10Z), 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/ARF070700038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ebc6ca6096b85047b9b69a5f8a2839784bcf2a2fb3f744d1d07006479660f44. Chain 2 (Bitcoin): anchored in block 957695 (2026-07-12T11:16:12Z), 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/ARF070700039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b7b9fdf4be5de082f74d8ca133c61eea2469c7e0bbb69055598715ff2322194. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T02:28:22Z), 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/ES5530913125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cfbf8514c38da6c2ba5429e93b403859162d59719fb394b20aa0dc151c4501a. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/ES5531225136.
Remembranzas / Madreselvas - Instrumental
La Morocha / Tiempos Viejos - Instrumental