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 0x74faf10a604058622325512177435a88d96ca09d315d312bad552fd98162d7a2. 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/6a08efcd-f7ee-4c7f-b93e-78c4a3e866b8.json and https://artists.proofprofile.net/proofs/artist/6a08efcd-f7ee-4c7f-b93e-78c4a3e866b8.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 0x94b66eee28ff7458b5fad03390135def12d5201f96d0401cc09de6bd2135f868. 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/SEYOK1738792.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77a1d3151be22d5b2878f1dbbcc48d29b003575df0effa70b5736103119aa062. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/CH6541905601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b4c69d06afd986197fb3ec0cf08325f4884df8305e694c5e474607b11a15cc7. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T12:35:32Z), 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/CH6541905604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf995dcb72759983ca27e4df5ad08a100a7af5645257f8e529ad25d1eb228610c. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/USANG2070477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7e8bfc895b0481d90c4e7ca214445f700ac56aa62862d9c1045e4bb5afc8fde. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/DEQ022011164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44ea713159a9fc25b66af12e06af80c857698babd821c843ab96ca1c79209991. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:51:49Z), 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/US3DF2467463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7de7e0667918582e6a603d4bd9bf4db9c59500dc53f060c42821fc513a3e51aa. Chain 2 (Bitcoin): anchored in block 958681 (2026-07-19T06:14:54Z), 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/DGA062446850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad42ab82634094a690d051046b6f1b126b1856dd42b19c03afcd19cdda8dbc31. 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/DGA062446853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85251e792171e0cc0805312f85b87c48305f0e93befa60bb61494fcbb010ad98. 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/DGA062446860.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2838b1dce2d4dfde91a34e06c10a406d36a24bd74c8c7f9839e2eca347168571. 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/US3DF2498072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x971c49adc00e335e67ebfbd5d2ccd3b3df3b20a904bb09581962a6dd187c27fe. Chain 2 (Bitcoin): anchored in block 958903 (2026-07-20T18:03:01Z), 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/US3DF2498075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96e49f37d2f521ec06ae7f0fde595147c3cd2336a57bb93b695d69321bbf9715. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/US3DF2498076.
Walking with Ur Smile - Moose Dawa Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c81ce70748a7a54b254792479a54fa44c5038dcc83e4141d9f85e984dbf08d3. 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/GBCFB2200061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16bda03998d3e8244f59328380310fcf431703309eec105372a050464123c609. 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/TCADC1749074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66e40ea504b633b13d15a24f63439f878897a68c0a8de6ed5ee9e081d4f7f80d. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZFYW1921465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd3cf0c796bd4f38f7cf4adecafaf9a2be3f4794b5954c795442c8b44bdb4b40. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZFYW1921467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3f8d33940fe618165ee7be922529c9e15cb863f9d4728d64c034f357f2fe522. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QZFYW1921468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee0b91f12c55394cd7b43ca057c903494d05037bd70c019f77886bb2b07eba5f. 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/QZFYW1921469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f7da08bc77b4ad3ac1deb84965fd02fa0c8b02590e1962530f546687bba5e23. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QZFYW1921470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bc2c1dc6718c22619b922d64d6cefa4c82ab74eb305d296582dfc9c615de109. 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/QZFYW1921475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4e04d9647f3ccf368c8bc0b45cc43309c7537f68f34da76b01d4f742c258d5c. 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/QZFYW1921476.