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 0x7ae5796ea24a237a68436d6e5d11bd1e5db31e354bf39d976b235235d5941176. 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/25f84827-a70b-49bc-8b39-a3fabe85657e.json and https://artists.proofprofile.net/proofs/artist/25f84827-a70b-49bc-8b39-a3fabe85657e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
El Poder Musical: Interpretan a Rodrigo Escobar
XV Festival en Guararé (Version OM Productions 2001)
Brindis Por Joselyn (Version OM Productions 2001)
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 0xc59351a232d72842bf36740683542ca9d6ffecc556aed716b31737aaf9ddcc5c. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T01:34:47Z), 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/USL4R2033907.
Amores de Ocasión: En Vivo Desde la Chorrera
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1806bba59616db8d82e3b646526eb2e3b626cf388bf956dc121a38890268796. Chain 2 (Bitcoin): anchored in block 957638 (2026-07-12T01:56:41Z), 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/QZNJW2114872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdeb7703c7c7906a075efdd3ba237a1a69d0615368ce5bcbca724ad880f42dbdb. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), 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/QZHN92226174.
Sin Compromiso (Version Popurri) [Version OM Productions]
Mi Sufrimiento (Version OM Productions 2001)
Incertidumbre (Version OM Productions 2001)
Que la averigüen con Bernan (Version OM Productions 2001)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x725bced28aa751b12fe55fac8103e685d5c42397f5db8fe1acc6c53f2dd2e757. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QMHUY1453189.