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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecd8394582094b080b09d301579531250360536196c8750c1a5174aa1e65bb65. 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/ffe86d4e-51db-4567-adc0-c73ce326b9dd.json and https://artists.proofprofile.net/proofs/artist/ffe86d4e-51db-4567-adc0-c73ce326b9dd.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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6e254cba92bcfcfdfeac4566c635e09aa28202435ccb86f4f5ea1abe564d828. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/USB4U0851652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90752e1b3697433ca3e95f6fc036d1812debe329f089c33bc3d7e21281f85059. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-21T08:27:43Z), 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/USB4U0851656.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x215be7b51932137b3410c5086bb9aea04f165ca1ac9fbc6038b435fa89111e2e. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/USB4U0851662.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05a9d42b40625fb021bdf6e37ed20b7443c3f1874e90840fbc74b1d2a77e36e3. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/USB4U0851663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c01da3d173d35937c51a25203523ce45b26625d3aeb8f38324df6a83daf7259. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/USB4U1000395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa070a26c8c5d4c53854efca281c57eaf0d367b20977db8bb60fd0c641403cbed. Chain 2 (Bitcoin): anchored in block 959084 (2026-07-22T00:50:00Z), 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/USB4U1000396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9177603a5feb0b8abd6a5ce164e01013cf9194a457d082ff58add498c8ccc5a9. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/USB4U1000001.
I Still Haven't Found What I'm Looking For
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x427dec2c4a010e3b6b21924009f1d93be55d82df929ad9f1d6236e53bfe37cf3. Chain 2 (Bitcoin): anchored in block 959084 (2026-07-22T00:50:00Z), 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/USB4U1000610.
Singing 007: A Tribute To The Music Of James Bond
Bonded: A Tribute To The Music Of James Bond
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0132d7ace861d501012c5039eeee101afb6783b1407c69ae35b2d6b244c17fb. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/US86A1500061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37b6665f1072821d265eef9fae6f5ed660581cf20531f7462830d8d657f27cd6. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/US86A1500067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0f69243740c7cb3b3c65cfff41864eb4272cfc60fa0ce79d353f8ede3a4e861. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/US86A1500068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2b2c275e6ea30a31ec6d5f05b0ef022e72e672e94b0e643c0123f951eb733a9. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/US86A2400281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9be943d933bf238b59173c5308f47c6c76d61021fb2f0b7c546deec56932138. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/US86A2400282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaca07386d7fc152c2f360f676c19600848a649bb03431494965563b8e1d528cd. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/US86A2400284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc65431608f8e86ba5b8637f8a5fd13ffb6a35853491fab2b2ec201bab278e18. Chain 2 (Bitcoin): anchored in block 958380 (2026-07-17T07:07:02Z), 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/US86A2400275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf767a343575b00e0acfeb84525f59dad17daf3936fc27ebbf9ebaf7677fac728. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:27:45Z), 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/US86A2400276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffe5fbeccd217344a3c3147a71b16096ab3f5fe416d98b4be9317d3bfe31e0d0. 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/US86A2400277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3333942861d963114f88d8453c9eb08c81556abfac52d328b53e4727907b3f5. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/US86A2400278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x161911c95baedcbaf1851b301de068f0dea5c2494796689c0c0788e9bd341b5d. Chain 2 (Bitcoin): anchored in block 958322 (2026-07-16T23:29:10Z), 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/US86A2400279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab6e5b6f55c76336722f16fa7ea947021d216d0d261447880796f61e2c722e14. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/US86A2400280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2b2c275e6ea30a31ec6d5f05b0ef022e72e672e94b0e643c0123f951eb733a9. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/US86A2400281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9be943d933bf238b59173c5308f47c6c76d61021fb2f0b7c546deec56932138. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), 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/US86A2400282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7488dbbe1aa39a95a72c9f8908b9981249bc667e5548a37bafffb0968f410605. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/US86A2400283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaca07386d7fc152c2f360f676c19600848a649bb03431494965563b8e1d528cd. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), 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/US86A2400284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf18b788b3dabc7d5b1b1726b053ac29202feeaeb6330b6f01564e2143f30ded. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/US86A2400285.