1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x6687fbf8057ffa526c0cada87f8f60ef3205ed7aa11e233a953735fcd11915db. 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/1a84a7dd-8d16-4f2a-9b54-e54087db7541.json and https://artists.proofprofile.net/proofs/artist/1a84a7dd-8d16-4f2a-9b54-e54087db7541.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 → block OTSBitcoinBlock must exist at that height 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 0x126c3715da8be89ebe84ffeade4881c9e16d45539d576e0bebceb5a03dee395e. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/TCADG1797511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf29fdc0f6e1354d6e7548e39a7542e775c562c0939169d633ebb00399dbc0abf. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/TCADG1797513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd498dc7a7421bace945dfb4abe4b0db167b81d2178c21b52d110d86e7a420668. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/TCADG1797518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f33ac5ed46052539c7a666f9dd8251cbcbb7ab1983fcd0da70e065168a2fea8. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/TCADG1797524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd69227af3730a5e06ff05ce567508b8f543210f999e9e67005ea821b9c17b666. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/TCADG1797533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f7b078216be602a1418b359e06c5ae85e532979c65d05baa65c0cbe6fb2a28c. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/TCADG1797537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ffe590447dde7c753ab724e0d16e388e859a57b7c54eb3fe84462ee5a394195. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/TCADG1797540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57b126717321bd08c7d7ff1ee0d1a3371d8461e98a29b63c8ea88cc251a3c2dc. 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/TCADG1797543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a95cda637b078cd8f9b848995a72c6dac968091e1bbadb1835c0117544b87d4. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/TCADG1797548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x835d19754ae0ed1f1005544db2201194c523cdf7c357b75c3f564b40eec3b470. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/TCADG1797550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc9f4de79d8644e22b8b951d6b7ca1de08c5ec9ff379a388c26c54099fc3c6bc. 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/TCADG1797554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9271f011ecb2409ac672b0f41e6592206fa3ad582564d5f9b3e06c8fecf698f. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/TCADG1797557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaf4f56dfa1aecd7c606bd7484bdcc77d44107c8e962e7d2ad9ba595ac7f763f. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/TCADG1797565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3b7988ece52ddfd4b180245f5343d7c6e0b4e60f0f117fce5277e7311384053. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/TCADG1797567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80d274502f478ba6c4352e55b23380f1f2db42565756ebc9776919bd8021e9f3. 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/TCADG1797571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07df532253a72d2b7ade72e7e43466bc937aae452a5566dd70e2a447ed625f95. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/TCADG1797573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52bf944ad2115b3e69fe11b35bed36db3744ad7c74881663ee13d8d8c4d27b4a. 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/TCADG1797575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83c82a4a259d7bce27938035a33a6448d0b1a3a65a7e53e0979a1ebccb72cf34. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QM4TX2025675.
A Thousand Cuts (Spotify Singles) - Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64b8b1faa9ec3b0cc7fd9fc29e73be1f322e5bedd5b4f1699aaf92d8a8f32a65. 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/QZHNB2211263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x382f584d10b80819a64e2afeeb546437779c4898e5c1985c2721ecdf557aacbd. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZHNB2211264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x389a16aaf3ccd071f602cdb2535e51a0a0d95ac23ee56a0a742b8dbfa93c8efd. Chain 2 (Bitcoin): anchored in block 958504 (2026-07-18T05:41:32Z), 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/QMDA72349468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd51e43f634607e90468abde9f4e9ac449a69b1132cbc4584ecbd99bf5b54ee25. 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/QMFME2310197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb33faf0c5d32ccb6836756bfb7ad491de87cb159f72b737efbfc9e249e8117ee. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/QZTBE2414940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7da1ff2b01fab75252ae2408dd768557667bf0a83fcb347ea58a28ca556cf981. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZNWQ2009321.