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 0xfdb948246ca08344f201a60cb63c6699c6f924b489675b5b2ae0c5449dff936a. 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/dc8fa1d7-e285-49e5-8940-52e340781d81.json and https://artists.proofprofile.net/proofs/artist/dc8fa1d7-e285-49e5-8940-52e340781d81.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 0xf40f91fed8c4df9924df6a2a57e1f4bd7c915c513b2ef9b2db7032c54cc74ea2. 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/USDY41905119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fc2567221f527b111d450dd8c4098736d7754bd12a04cff5aa376a3b39d26cd. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QZES92073513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x989dd60aab2aea0d9a643551b5082aabe330672598c17504f2ff24fdb2e7ae1c. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QMGR32219337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28ad82b3786a08c251eb1cb2be0579c88fcf9627a33cdd007b1ab0cb0f8b4a0f. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/QZES72109148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x725f0a40a9696a88c157e64590da1fb51b4cf5a9ae42753e4caec5502ed5a661. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T18:18:35Z), 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/QZES72109149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15c79691e27db41e1d4f0110e25cb5c24e7b2bd2f9731ce0d3841e07b707c5b9. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/QZES72109152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa56859f31a395e9f8f449926f9f87445a4fdcb80935364a9c1491007c3441fa0. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/QZES72109153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x144dd7675bf3cad495e0fcb6a773e7d1068920f7be7619048eecff23d9c1b90a. 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/QZNWR2160086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72e3fb73183cb1de9597038ede87be88bdc409f0369fd74259322c3aff25dab0. 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/QZNWR2160087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb51c5a4698400eb1f87587f9a88f9513ec036b153dd6a722360dcbe5a2daa499. 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/QZFZ62220341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8874cc36b57203486acc650ebf6768c4b33ead0ee9845d4883bd306a63eb6aa. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T18:28:15Z), 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/QZDA62284411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdaf452522c14c879a58a6a89b960435a85f2f782aa1751064b6168e588b46bac. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/QZQAY2318566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d9d179b204d5c58336c3a31b0a444a86a093b78fa65adfbaff8d37ddb11cbe2. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/QZQAY2359923.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63d2c84431ee106b4f11bec457e7b991ae3a635c8ab45e5872aabd71239311b8. 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/QZQAY2381429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a150bdb3c7a847e9c4a37797899692773978af09bf1397f61c7cb6cfc72b0a5. 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/QZQAY2351824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3372c512d2d0b977490f2fe4eee907dcae2c56ed3b1a656012e8aa809d4e86a0. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-16T01:30:49Z), 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/QZQAY2399070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb77e492456ffd3f268390f3d782e70c6627cb81ad0cbf5b7a2711985102be531. 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/QZQAY2313507.
Home For Christmas (From the Original Netflix Series “Yoh! Christmas”)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x563beb34ad8ae0d9f607a4b40fe9c7ffe8b21a13a7481324976696ef4fb78752. 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/QZNWR2454523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5518061eaf4511d04bc61fe2c595699943535aaedf8018b5d12ca64c37c208b. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QZPLR2412839.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06b1c6d37f42433a37789d40d2ccf3c02e6f9145a56fadcca8d9a73a217317c3. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/QZTB22433722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61a6270e7ac79e6b7750ef2e24a2f31d5dafc2b928f044f2543aa06567bfa9bd. 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/QZTB62424103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e341051cfb2cc7a022b50bbd37047badfb90c2953d4e064ee7842f2452d5173. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/QZTB82419542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc48a87687e339ab4640b83fb7b117d9224f7648c288378662db3a35e077a0f32. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QZTBD2406502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd047ed5b3704f694689b337a0be724ccccb4ae6e6ef942fe2e2b1052abee2a2f. 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/QZTAS2436473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0cfbd3bda242079847de9509e2367787e93b4b64c8b424a961129f274acae69. Chain 2 (Bitcoin): anchored in block 958863 (2026-07-20T10:27:46Z), 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/QZTB92414782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89a17a2e27d19444b531a3e0692e85f0f4c8170586f7dd40de4951504aa01b06. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T12:19:53Z), 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/QZTAT2453782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d9337df12e88f131a3af6ad114dbcd557ae24ca903c9c2704542e53199f96d7. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), 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/QZWFW2553754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f9940c904c563b095dde694e03b3d9243ae61b6715c716636ebf979b8ddaed6. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QZWFW2522946.