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 0x47b8362cdd9b04c01fec2e5a2798ac76411f45e2b57fad83a2c8bec237225171. 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/86356ab6-8533-4763-a7c2-e606c1b61198.json and https://artists.proofprofile.net/proofs/artist/86356ab6-8533-4763-a7c2-e606c1b61198.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 → 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 0x10f8f59153301f0ce8bd3dc023960d33320a20af30cce7e4183f5d662162044b. Chain 2 (Bitcoin): anchored in block 958510 (2026-07-18T06:38:22Z), 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/FR10S1794582.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa35084072f76b2890627a3cb3b275ce9d53bb39eb91f948a5a095111480d55d6. 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/FR10S1794592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde7aa8b6daedfa96e8b1fad023dcd0d156a290daf582ca9761d9ab1464adff36. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T04:28:26Z), 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/FR10S1794587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1986c38f62093bf62a25811c15093ad9b7d2a13cb2d4a66ff1bd3248aad5bcb2. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T09:42:24Z), 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/FR10S1794590.
Esto Está Bueno (Hijo'E Tuta) [Pa' Usted No Hay, Pa' Usted Tampoco]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc699c77e6be7ff42ec403c5ee62c5ba016f52df8896ef849dcf1627e799bb80c. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/FR2X42106524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe32f6679b23b788f0b8d3fc249ea3e34b54173e3ad4669ebc1739b2fbb68baff. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T08:04:36Z), 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/FR59R2141583.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f3967da46c22410fc993733f71f6805eb0956eab421c9aeb6ed30cee8f0e3f7. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/DGA062242047.