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 0x6c0ea8952133a55bc3c15fac386084c6d7edc9593a8d9c726e987d58e470b4f8. 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/a9d086bf-1ab7-414d-9cb4-57ad1a1826e3.json and https://artists.proofprofile.net/proofs/artist/a9d086bf-1ab7-414d-9cb4-57ad1a1826e3.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 0x16e488f6281ffccc2ab15024551759a4e4e63789d121072e147adf38391e87eb. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:16:05Z), 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/US25T0611354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9def313b8ab77b7ee6eb448eef28e4d90970c75ac0509059613dd1f2ab22ecd. 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/US25T0611356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2b830ff0bfc1e1448975ec90d426f4d143f707c7de00f5bb8719d180e76362d. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/US25T0611359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69ab5054596556f529a55a96970e195df6f5d700eb8720930a05c88416b4f09e. 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/US25T0611360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9092c94e99378965b935d40d6102377d0d451578bf6edf20de562003065b9bed. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/US25T0611361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd17c64af4ba4f1c91dab68345cbb42d899d4e7bf71032769b59a67041d18d54. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/US25T0611316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9187121f221f4bcde4401f5605a5597fc6bf14ab241b1f52eec1472a4ae9a30. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/US25T0611317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a8e4d6c351635cc6b436aece4da268ee0c5a98f46305f7166f00959716718be. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/US25T0611318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe68f4acfc18b68c656d9143ba44e427002bb1171646bd9a1edec9b79b123343e. 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/US25T0611319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f9fd2a0b914e6f9ec3d5a0ca7f579c7bd3ad31f8d9081a4de232f6fdc910ca8. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/US25T0611322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6292cf085976dc394f451cdeeede8bf827b8998f947980242a99459e4bc51ff2. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/US25T0611323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x565ab102e65cf920834e273404447c3d47a04717e2f249f70fc58488f4ac3e97. 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/US25T0611324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaad6b66a2cb6939a5145054297cd4b3c29888c37ea48920d606eb6e8ecaf9490. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T19:01:29Z), 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/US25T0611325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1daa34736cb35e32dd74eb1d594b3dda053a8300f1c7a69ea1662076bc8f239c. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/US25T0611326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0faee24bb467499fe4d3644278d59ca90e2939a9ff50694f6683579f1caf1e8e. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:57:59Z), 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/US25T0611327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe28fb1dbb9342c956cf933837849c9ad3d757adca870b4fbeec5aa1c87f76d8f. 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/US25T0611328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec8616c606adef1d5cbbc5188dc20e418f0ab44a18cba29d831c7dfca68edb07. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/US25T0611329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf7bf6605cb01e0c643a41ea1d074fe5e3120c8f7a1d1937f9ebf1b0300239d9. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/US25T0614696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x621ae835b992edb0f5fbc65d2fcabf9e98c32a4c8e565f3a4c1819050877fd21. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:39:10Z), 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/US25T0614697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa06d9ae571d75cb637e3c44aa1a75492488605ffee96b42608933999593ed6fb. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/US25T0614700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2d976aad5e2ca456bbeb77371eea25244820a6ed9c760facd2e5e851c7b3c46. 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/US25T0614702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x603c67d634c3664922b5dc04db55c0bed3309b211d79129ec3f21ce96c8ffc08. 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/US25T0614703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62bbe14d67376d20afa11e40a60f690f0870a8f366985dcae13244983a7aaf37. Chain 2 (Bitcoin): anchored in block 958947 (2026-07-21T03:40:16Z), 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/US25T0892701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4d7d62dae198dd5c629f0cc057ba9bf8672a4c62175cc38c9135d582583583b. Chain 2 (Bitcoin): anchored in block 958891 (2026-07-20T16:24:19Z), 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/US25T0892702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8105a343adf1477c731e62c36b4b99ff76064641fcbc079a7859f9dfe695c67. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/US25T0892703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93afaf6386a297708f30903f22104f8450e89ead9250960e1335ab5b0db569f0. Chain 2 (Bitcoin): anchored in block 958538 (2026-07-18T10:30:13Z), 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/US25T0892704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca5a8161473b08d023e3ee27ca7b6a1d886ca700630d5ef8a2b7fc4e502c7195. 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/US25T0892707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb342874b20265c036c54f38780b0d7803ad83654b85ae575fb5a1b805818789c. 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/US25T0892711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65e46ed34a5199919b0e192497d9799ec66797e474f95950f6330b3a4abdb4f8. 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/USA370974886.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdb6ccc917d607de0461469430abedd2ac922f18deb592ca8a73ef5b7584a472. 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/USA370974887.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x239b3957d5eba0cc442084ea5c8198ccc9b28cb6b43013755cf818014821850f. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/USA370974890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e5f03a64df58630aefa6d3350d1c90496a50f0a861d8911cbf222ef79ba4177. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/USA370974892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b2e7d9e8134e1c37a81c5deede8f668baa63aca78a5fb2f4625133873bd075e. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-21T23:25:41Z), 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/USA370974896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x169b78fa6409c2f01b44e3167ddf161a48f877efb2d0780fb3fbafe3f38e79a7. 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/USA370974891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87ee8a8382b97fbdbfa1e3971a46d1700c7e7338178883dcc9d864ec467bb534. 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/USEY91202305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x946651a6bab323db01d048874a6ab7fca6bfb0d15b29cb6f2a728643ecb4af1f. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:58:35Z), 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/USEY91202306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce6b5c15441467062eb60e5e0758311d6fbd2f12b7931f501bbcefdf54c9547e. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/USEY91202307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8c6d41b6c979bb099101408e2e9469db4b643f6c3527885658492dd08dd480c. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/USEY91202309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb31810fbaa89b97c6e6457b1d6063530423ada3c4ca76b713adf3e473bc08878. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/USEY91202311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40d1a416607b7ae76f1e54c292f0dc360b8327de1881f3ea0eb0963be44dca6c. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T03:29:32Z), 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/USEY91202312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa231c355cf8e4ef3f98455267f1dc4d61808f2279cd88dd0f8b9e329b1318824. 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/USEY91202313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16e1c556412d5fa32937faa0a57c07efe5dbc3d7074465c9cf634a5c6355cecb. 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/USEY91202314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65a7b5df6ea81f9b883a5132c5fdce294158fa3aff8043665720cfdd5771fca8. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/USEY91302801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a259174862f47eaa9572227cf8ff32b22f752000c8eb361a83010d7555cd506. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/USEY91302803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1637e8d0fdc978b8909df0c31261fcf3037ac8c8292670db6e10f2d6dfa452e. 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/USEY91302804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa956448d76b4748dee0702f6aee1e597f74c729ba610bd5eb4d15c309ac240ca. Chain 2 (Bitcoin): anchored in block 957653 (2026-07-12T04:35:02Z), 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/TCADC1756789.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f56a16d11695ea535ac9befdf6d9e8c47fc53e463bc79e816fb0d0ad6bb533a. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/TCADC1756812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa13689e6d74887ddbb6a79153229506618d8156c7629fe2fad9aa4af8e56d46e. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T03:06:31Z), 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/TCADC1756825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5962e65fd5b480c94572e4776674eecfb612b1146d32d2c4081da148c5dc630. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/TCADC1756840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x966a47abc855c2f44ccc96cccbd94b0892da67a88f500fe6508e804784c674f4. 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/TCAFI2019799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1264cdcecf53f0a0df81595723e2bb082c99011450be2872832a313712928b4b. Chain 2 (Bitcoin): anchored in block 958122 (2026-07-15T10:34:44Z), 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/TCAIZ2421569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0501f21e2e64022f8b5b54d2868e438d542dfae86aef7442d672ebe96e740d6d. Chain 2 (Bitcoin): anchored in block 957650 (2026-07-12T04:18:57Z), 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/TCAIZ2421591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10dcfa41bac54826f7a013e1ffdedb7d072b51afe4acc6e145e78b5b69b60739. 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/TCAIZ2421600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x372f4691f7034a79d33e5ca94f7a061db50b5fee40bc7c943de724b3c7ca8f51. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/TCAIZ2421608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5bc6463427dad5b98fb69558bcc77334323bb8b2477248ead68c1e5d751cc6e. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:33:03Z), 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/TCAIZ2421624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa86dfc8480105cd343afa22344061cb878b7fbe93a1e19b14522ba5224cf248. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), 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/TCAIZ2421643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd81ca2f7bb14af02c4fdde0969d3148c52e33d81f1683d92e3f1088931cb4448. 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/TCAIZ2421897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5280070839468b008d9cfb2b8d85bb67f5696f5e4044109132ebdab553bf434e. 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/USDHM1509731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f4b5644c6539beade63d0b581264db99d0bc2ebd13ac5f2f72f2381bf35c200. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/US25T0614713.
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