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 0x67dd87e9a2a4283204831db1c01eb7d95ea3d62cf427d75b6b5905e3a76c480e. 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/90f5ac4e-dda6-4fcd-941e-d922677e644b.json and https://artists.proofprofile.net/proofs/artist/90f5ac4e-dda6-4fcd-941e-d922677e644b.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 0x6cbef8e3a6703980568139a9d713350cadfb400c4398a658e94ec42449f04733. 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/GBKQU2267258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98395493d0c10ab58bf4e558a8b845cd157508c47a23ecff4584c4ddb2a7a42a. 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/DEBE72400411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaf073752f971dd4d8dec6f1e134240b5db5d1d2c8c21c78fc6e49398adc0cc5. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DEBE72400151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x482bef567eef066cd3d625f9cbc6376ffdbfc1c6a73d95fc774259e74624e9a9. 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/GBKQU2398346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bd4565c3d8115fc94c41cade05dfd94b12fe79d687c9ecd43555ae17be22042. 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/GBKQU2398347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfa147e097d5205a76927ad2930ba0418f47f197aad73ce6d0506d71d01aaef4. 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/GBKQU2351801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ed2e49fdc8fb2411cf4588fc858688e1fda62c6268fcb8fb09f64cc6c1fa68c. 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/NLHR22290057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb78dc33b430e013642aeb2ab81afeddcfe4e8649484fd40c78995b570104708. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBKQU2259143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x970b1c16fa3877255a435a029c658f23ecc2b45cd6b941412af9ad2923d1cca8. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBKQU2253110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50b7fc75e503b82e7ad91544ef409a6dc9dd4399dee35fe27f613372e5e2a823. 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/GBSCL2189028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x376a5aea99efe5f756e8611064cc19c7f0375cd8760a7ac831d93839bae7ec83. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBPQS2100104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbe159fcc422e8cfb472eced6ad98f50ba7345b72b92064716177dcef948ddc8. 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/GBPQS2100103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf895ad667154949b30ee8d53df2a2cbbc875e0e2008df3aca6136b8523fee03f. 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/GBKQU1995486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f434f26ea6377d3b63a99db67ebaafc6da57aa651b514bba98750488c86e74c. 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/GBKQU2469044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa97c8d6d7bca2308ce1a829f1509da6c4b5df44af60acb4c7546b3b821d8d370. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T15:06:20Z), 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/DEBE72500083.
Lost In The Desert - Mixed - January 2025
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cea955bc2289ed216a8decca8cb44274124454055104974dcc2c865bcdc82f4. 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/DEBE72500084.
Dancing in the Night - Mixed - January 2025
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3b161ca04afbb78b83ddf0190de42dcdbef73df37a6af61fe37e96a480d156e. 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/DEBE72500085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed733ec6dff53c6a136bfa51bde10bee5973b7aef039c1e3f1ecc4ad5826b480. 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/DEBE72500086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02b27c7abbdb088e24ab9c1926d42d6ac88f14f15cb9130dd23b608c20e816a0. 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/DEBE72500087.
Molly & Sally - Adam Ten & Mita Gami Remix - Mixed - January 2025
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeec7c2fd5e7605575d33acf832325da967e02519178a1fd146ea16c270cf7d3c. 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/DEBE72500088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cebe40bce11a7e21a56b474ef51ef4f69e75f9a0279240c183d97c08f8b52a5. 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/DEBE72500090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0672482e43b39cee1c972e28cba59e5b60aaaef2576bc6115ae75995e210145. 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/DEBE72500091.
You Were Right (FTP) - Mixed - January 2025
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8866ca39181dd8f6624dd0546af380fa1680bdaf7d4c4f87a6bb48d8c16b9de8. 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/DEBE72500092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac81af7fcd63f908e047143d725056396c6316618d63ebd431ee09599545edab. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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/DEBE72500094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22a26a1d64c4fea2b1f6496774e22e5a9199f2ad7b824102cce1bdd974291407. 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/GBLV62101939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dd84beb2c3d861e0d06108c39ce7c010e7a8bc9feccb0d08f895e94c9dd1fb5. 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/USEY52200651.
Be Your Girl - Arabic Piano & Dr Feel Vs Stay K Dub Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9930f5dedaf6bed7a282af1e3c54be3c90b369b36e7d9594f1e058f7264b11c8. 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/USEY52200652.
Get Physical Radio mixed by Mitch Oliver
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94f32e50730333fcb3b682503a5ee3675b308bf20dcc63d99f2a1e9116050ce8. 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/DEBE72400595.
Body Language - Danniel Selfmade Dub Mix - Mixed - September 2024
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x152f1ff6a8bee06da0a125fbd8b69e5d6261104d20f4f5fe2098fe611088e5a9. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/DEBE72400601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x274d9d5a8a8fdc48faba87fe8f1228e9682323893037d3c8478a0405d8a1dfff. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/DEBE72400604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaca1c54b488402afd9c06b12b1dd6493be06f413719a6bbd3e211e8f625edd43. 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/GB9UU1900011.
Toolroom Radio EP527 - Presented by Mark Knight
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x296608423c74c53a05f04062bd16357397a1f9684c1ed0c266b38027f0ae780f. 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/GBKQU1957770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05f3c89cdf22275c0579a94853482b02d68d846738ee195b6c10e0f30352db64. 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/GB9UU1900088.
Nothing But... Organic House Selections, Vol. 07