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 0xeb486156af633bd7313e989457c599011c2fdec121cb6ad89b7e9b47f8117247. Chain 2 (Bitcoin): anchored in block 953600 (2026-06-14T06:45:44Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0e393fe8-ab64-4fa4-b523-2b23673c2f8d.json and https://artists.proofprofile.net/proofs/artist/0e393fe8-ab64-4fa4-b523-2b23673c2f8d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
150 Aniversario de Moros Nuevos 1854 - 2003 Villena
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 0xc0ab06a26d30708eee0d95093f2a3b0b43f11c82cd74e68c5bf21a1f168ac88d. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:44:00Z), 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/ES71G2103696.
El Alma del Pueblo - Centenario Ruperto Chapí 1851/1909 (En Directo)
Compositor Manuel Carrascosa García - Centenario 1911-2012 (En Directo)
Caravanas (Moros y Cristianos) [Edición Remasterizada]
Villena en Fiestas (Edición Remasterizada)
75 Aniversarios de los Andaluces - Edición Remasterizada
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b3264a8944a5d1accb731d9df54e8dd90318e6b5e194120740dc0cca125d44d. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), 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/ES71G2033421.