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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd3fd65a2de663a269c2c595a4feb20b089da3adccc32ca04f2e9aad52cf471c. 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/44a35aaf-cd44-4a91-8e79-f0c2a001b41f.json and https://artists.proofprofile.net/proofs/artist/44a35aaf-cd44-4a91-8e79-f0c2a001b41f.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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4adbc0c63ab601a69f37328a705e95cb8236541c4fc605c5fb4fbf71c32cfa00. Chain 2 (Bitcoin): anchored in block 957801 (2026-07-13T04:17:08Z), 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/QZFYW1969396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7d95ebaf3cb896bc96b7472fd29b96cb32a050cce18ef3f0ee5c017782f44c5. 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/QZFYW1969399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b3544fbac5a02c312731127316b743fd5f6d17f3fcabe12d224c1ecf001bd98. 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/QZFYW1969401.
Burn Down the Place Dub (Victor Rice Remix)
Burn Down The Place Dub (Victor Rice Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35538b28927f38a303cd5d2ce879ef2090383d6be910d756f95feecc84fa40c7. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T21:24:46Z), 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/QZJZC1900774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fad4cef29f91493c4f06f287bc4fa62afd22f18c89d476c624299f362afeeef. 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/QZAKB2156662.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4ffdd2eaca21846495c88242766568848e1f555fb61772080b004ba96626f0b. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T18:01:47Z), 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/QZAKB2156660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd37137192a8d1acafd0c6cd266f50f7750dccc1b78d68db7fdf607e40cb3e765. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T16:58:47Z), 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/QZAKB2156659.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fad4cef29f91493c4f06f287bc4fa62afd22f18c89d476c624299f362afeeef. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/QZAKB2156662.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32424d9e03d1d249ced577ec5100f942fd5ee8752ac3bb42e9fea03bda179ddb. Chain 2 (Bitcoin): anchored in block 958812 (2026-07-20T03:24:09Z), 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/US4CL2510015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebe8cddb6de19f26b4fea544342bd9261ed666989b8c2576b2b673f47546984c. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/US4CL2510018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd620b5512c17b662a04e4f7910a561c5e37a64491d29f5f0c1510e3a74df26e8. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/US4CL2510008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1f83890e5bb9c4e3306b59eb204888660f06b013ff6e3d5930199745ee11bbb. 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/US4CL2510010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6524c71c9dc2e2503c620240669d29e1bfc1b7d7a2ddeff6e9b901f25f23848d. Chain 2 (Bitcoin): anchored in block 958185 (2026-07-15T18:19:04Z), 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/US4CL2510011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b7d72d576346eb2bf61a26ca5e428706f42e42396f66f355435000a76032c6a. Chain 2 (Bitcoin): anchored in block 958878 (2026-07-20T12:32:15Z), 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/US4CL2510024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cf0ee6e8d38fd9fd839a800cb3c51ec75b084548a9349ce39ab74c9fcf48e6a. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/US4CL2510023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cf0ee6e8d38fd9fd839a800cb3c51ec75b084548a9349ce39ab74c9fcf48e6a. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/US4CL2510023.
Scientist and SunDub Meet The Spirits of N.Y.C. (Spirits Eat Music)
Scientist and SunDub Meet The Spirits of N.Y.C. (Jump and Dance)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8815dca5e5214d641621f3fabd4c3f79b7d67e4f7b98e69b7d242be1185f0353. Chain 2 (Bitcoin): anchored in block 958656 (2026-07-19T04:04:08Z), 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/US4CL2510103.
Scientist and SunDub Meet The Spirits of N.Y.C. (Jump And Dance)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd19b8ca789f80e521b9f7da07c1f9d0f0a727de2d8866013e12781e8d49e2cad. 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/QZTV32304040.