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 0xef0c82c46c108e8a3d5dbf2a58685544b73ec3a9f6a9db4a8caa3f7932f61e29. Chain 2 (Bitcoin): anchored in block 953827 (2026-06-15T19:59:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/da4fb0a6-ce1d-4d10-b21e-5ea454d469be.json and https://artists.proofprofile.net/proofs/artist/da4fb0a6-ce1d-4d10-b21e-5ea454d469be.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Las Más Escuchadas de Night Club Orquesta
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 0x1ba22efe490d25d626de0ccb43ca229deead756e674e8a8f5990eed3b7b688c2. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QZNJV2121203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x013a75026404f747fa8fe87f64a45871cc969e42f3618fcf4169ed663de8e49b. 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/QZHZ52283800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa553f19b8db65c00c7025d51fa6f268ea0b38dec9004dcfa8b95c5e296b033d1. Chain 2 (Bitcoin): anchored in block 957064 (2026-07-07T16:43:08Z), 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/QZNJX2283225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4c66b9049e81d223e62c53dc119fd195691eecf2421db44f124699ee930eab4. 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/US7VG2329912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcce060458ce7e554b73f7270c6819d6b6ab5b137ae328763fe7add94d29ca088. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QZMZ92111892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4d9e781d578f0dc326550cdee832aad6e2e8dd3ec297e14c3c1bd84e7fa57c1. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZNJV2121162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19d009846eaee596d6b4f4d2fd0180dd1068241ddae8ad383d9855c7befb2b32. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZ5AB2384713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb93c873df3a089c40e6a4fd8e439304768dc5e1b087535a58ce7fd2448377c8b. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QZ5AB2384689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb66255a5758b63c04cc910605a43d1d6b5617eb4a09e4b1ac0dc26cb60d0b85a. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/QZGLS2392010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb93c873df3a089c40e6a4fd8e439304768dc5e1b087535a58ce7fd2448377c8b. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZ5AB2384689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19d009846eaee596d6b4f4d2fd0180dd1068241ddae8ad383d9855c7befb2b32. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZ5AB2384713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4c66b9049e81d223e62c53dc119fd195691eecf2421db44f124699ee930eab4. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/US7VG2329912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa553f19b8db65c00c7025d51fa6f268ea0b38dec9004dcfa8b95c5e296b033d1. 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/QZNJX2283225.
Te Lo Diré Con Música/Muñequita de Squire/Prisionero del Mar
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x013a75026404f747fa8fe87f64a45871cc969e42f3618fcf4169ed663de8e49b. 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/QZHZ52283800.
Extraños en el Paraiso/Aquellos Ojos Verdes
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc96bed8e7f969f01afaba7b19d707ae284632956d9f2e48b0cab195b56986a1d. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZGLM2251998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf28392cadc8918e2c8950fdecb2c13919ecad3ff4989026284a2daa7dd6b32a. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/QZTVM2115810.
Bonita / Viajera / Quinto Patio / El Dinero No Es la Vida
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x390cf073662f8b9ee8038345229183699510f366cde9cce0b649c19921ff479d. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QZNJY2134567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ba22efe490d25d626de0ccb43ca229deead756e674e8a8f5990eed3b7b688c2. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZNJV2121203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4d9e781d578f0dc326550cdee832aad6e2e8dd3ec297e14c3c1bd84e7fa57c1. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZNJV2121162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcce060458ce7e554b73f7270c6819d6b6ab5b137ae328763fe7add94d29ca088. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QZMZ92111892.