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 0x4235d5668474f57ba98e710dd6e9bec74bebb0f843a47aead4e43539769e3f50. 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/db9b623b-db50-4605-9ae7-f27d92698c2a.json and https://artists.proofprofile.net/proofs/artist/db9b623b-db50-4605-9ae7-f27d92698c2a.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 0x863e6694e1b3c4b8e6f5411f828fbe209bea86a7c76ed59c3c0aa5ade5137982. Chain 2 (Bitcoin): anchored in block 958816 (2026-07-20T06:36:23Z), 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/GBLV61631931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca988d7a2d01fd0ddb76e7df85fc1516624282d6c32c499a63fd922ea8729a17. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T13:09:52Z), 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/DEH741652295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc059349dcf0186bffcdf1efb30244cfc502325cee721fd4d57d44defad8d9af. 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/DEH741652297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47b43708503832fe8b7bcc1e109accae37910506bfdee158fb4030673e94d3a5. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/DEH741804084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8aa91977a6f45968fa95dac1082017dbc9e36ef921768411aa0ecc1ac45ebc9b. Chain 2 (Bitcoin): anchored in block 959051 (2026-07-21T19:48:03Z), 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/GBKQU1876805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fe4a26a220bd7981ff482b7bbe501db29f0847182afd0439f4828506d94129e. Chain 2 (Bitcoin): anchored in block 958627 (2026-07-18T23:33:54Z), 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/DEH741816980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69a657bf98307f87507235ac6271ee6e0bfdb6a87279e4df035580f6a407944e. 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/GBLV62040474.
Groove Machine - Alvaro Smart Remix Radio Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed15609a2c4691be877d0f889988bdec64ecc19a5cd79c6ddfdc31dafd09b126. 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/GBLV62040476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x538d16387e910bdb95b8869890e8651b5fb3b0d3005a1eb799929fb5f2f2d3bb. 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/DEW872104642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42b47d9fe653f1f2e97507b24447ef30f76e813e69b3809a2539cd2870e167fe. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/DEH742159420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb79cb4146583626152bb3bce3d7d7c80f474789ad2a9707f73362114985a9751. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/DEZN82120947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a21fe65c2db3f2af7280c8c4ad3d0e4dfea8f5ca29ef13bfba1a93d8304a53f. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/FRX452206901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcdffe1d583a71f2d715aea128a1bc6cac6082bf349b812a6abef6e2740b0b7f. Chain 2 (Bitcoin): anchored in block 958185 (2026-07-15T18:19:04Z), 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/GBKQU2336026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x556e51d098c41c17fd65b6f85e7a63f90058ad19fdb8c9eaa5b7f0d4cb15e933. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-22T00:15:15Z), 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/QMBZ92351795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31477a5f99997996a45f965ee5d34eb20d86be45180e494d037aa4f3739d4f54. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T12:04:18Z), 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/DEH742325454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6029e49434e00527b601f89b07f7e6e72bdeb89454059fd0e39d9e6fb98ca48d. Chain 2 (Bitcoin): anchored in block 958242 (2026-07-16T07:32:52Z), 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/DEH742509605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb278ea242ae7aa325232b976569fdb00af8d66bcf6938fc14d98a6e8be79f2d8. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T10:36:52Z), 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/DEH742509607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11716f1574c6bdd9f6cabca1a78b520bbe3e4fd214f68546a06848b83f5e7afc. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/DEH742509614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e37d36979c1458e758563337cae37ced35949b61ebe278703cc54925255c409. Chain 2 (Bitcoin): anchored in block 957779 (2026-07-13T00:19:08Z), 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/UKR6V2510355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f719347033c8165490b59e968df147279e3c94e84f7bf5ce39a61808fbfbdc0. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/DEH742419023.