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 0x706edc4e1a0f65631049392d7cc72536e549cc3951122db6a181b55c64d0cc6c. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a7c9d730-da6c-46ce-b015-077f09912d16.json and https://artists.proofprofile.net/proofs/artist/a7c9d730-da6c-46ce-b015-077f09912d16.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 0x7fb58e5324a54a5bfd9cbd794a43e76fd376d32d953808d59c9acf1f2800d7ab. Chain 2 (Bitcoin): anchored in block 957633 (2026-07-12T00:19:47Z), 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/DEPI82213600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa93c5b4cd145df9ee2b1278bc328e15c72ba5a60628d61d51caccca369cb1c11. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/DEPI82217543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c64e3bd95a288d1d98bcd33cce2abe0cad106d2c43d3eb152af7b7a93d7fdd9. Chain 2 (Bitcoin): anchored in block 958947 (2026-07-21T03:40:13Z), 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/DEPI82213598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56dceffb9c875df966bd5bcb9ac7cdac171624013ef766b113009b2409263df1. 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/DEPI82217544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38ad6591c8c363870b8bedb591c221a346960c1a22a87aa7cc88b991a55a5700. Chain 2 (Bitcoin): anchored in block 958395 (2026-07-17T10:10:33Z), 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/DEPI82213601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d26fbf7929cf21321a35cca246f338d70ae3625732099c942d39d651a74616d. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/DEPI82213610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8acc860e56deabd53f22fca72fa1555c1db51dd3f5eee755f899ff54e8b4f115. Chain 2 (Bitcoin): anchored in block 958726 (2026-07-19T11:47:20Z), 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/DEPI82213593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3445a45114a466024004c30b436d97f4f2703dc8882577763a69a27e4a25df56. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/DEPI82213607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf216c823a3e3a9dba6bff09398732b2d8e14d5625cac7bef4ffc06c3ac198de7. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T23:02:15Z), 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/DEPI82213594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03bc27aba037bc97ca4179707834e798a1152015ada5f025dda7c365d99a429e. Chain 2 (Bitcoin): anchored in block 958668 (2026-07-19T05:16:11Z), 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/DEPI82213603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1117b78744e1b25bc8ed2f9f2325a9eedd2defaefbd1b8c2e03ebf78651da83. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/DEPI82213616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e726ac6e662902b90cfe0908518c7ebd978b356376a0002439ca6d767f964bf. 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/DEPI82220538.
The Singles Collection: Hanoozam Hamoonam
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cca1d96af9e5f8a31f69e23260ab332ea2fa1eb8aa0869cf0f586711ae766b2. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/DEPI82220541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2acc7eacbecdc7b7f0ebbbaa78b889dc49d6f8715825d3d8e38f864f070faddc. Chain 2 (Bitcoin): anchored in block 957540 (2026-07-11T08:19:50Z), 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/FR10S1836151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a5df42b5846a9a3b08f90a23df59ff0255d4b96d523349a072206147eec6a7e. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/DEPI82220539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe74366c37f65ecbca2535bb98bd11c9ff15afeede8612de94e215b8830842fc3. 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/DEPI82220540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd41c5bed7c5b37e89f8b40b5849a9b67934afb0ac158f1c971d255f183fd0b48. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/DEPI82213611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6f0e0ad9c5598fffbf3ae8f2a36e886ae50cc6b30853fa02a5f86be644b5dd6. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/DEPI82213574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4defc701fefff017528da45ff4e335d0d251cc5d184e024859c8b9d6a9fdf382. Chain 2 (Bitcoin): anchored in block 958465 (2026-07-18T00:04:42Z), 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/DEPI82213573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61a51b4f81cf5a6e41b8ae5d41ee709f82bd4226bd80c86ca1809195731920e9. Chain 2 (Bitcoin): anchored in block 958242 (2026-07-16T07:42:47Z), 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/DEPI82213562.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2ceb69ae1030b7b32fb06b541ecde8a77ed4e8449fd171ec434e33448fc324a. 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/DEPI82213563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf6c2a789b7bc9ef06a1944d64e710a8862e55cff8035cefad20b7122fe9fb23. Chain 2 (Bitcoin): anchored in block 958329 (2026-07-16T21:48:38Z), 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/QM6N22543565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20be4e382cc3adcc223621e6283581b21e991aafa62cf32c999476ba7272b9a7. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/QM6N22543572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa13fa4d7861945e52349d5aa1ddda6feb5c06e092f778bd0a30a96d8f08eaa59. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T21:49:09Z), 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/DEPI82302506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6791bd9190c2a6db580006ad1da30d751cd70e7709899a4d8d957051a6152d19. 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/DEPI82306642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31767601a89fcd5215e7fa9b0cac889b2e1b6415d4d06a4dee36a51265e16acd. Chain 2 (Bitcoin): anchored in block 958242 (2026-07-16T07:36:26Z), 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/DEPI82431492.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2683a7ed5b9112afafe0411874f61e471d744c04843037d7b05651d63dc2443a. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/DEPI82457070.