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 0x8dd157abb6b1b17dd9adee7c91fd3280d8d6818cdef3d094b68d014420520744. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/aa01c840-54ea-405f-a4b7-e04bcb78de2b.json and https://artists.proofprofile.net/proofs/artist/aa01c840-54ea-405f-a4b7-e04bcb78de2b.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 0x6fce7f8644298f8282fd01e9fc49c270ddc255bbc5d45aa8187128afac83cf8c. 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/USHM22098222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x788ee8976fb58dfc12a4c9a118621eb0d22ed0706539aceee7d4748919873155. 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/USHM22098225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5a257e61cf610f8d77cf2841da3f733cc61aed96ec180cb54d58e49188e221b. 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/USHM22098233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44d516a7a2fd96c020aeceb9ce00bf6f8ade809b9df5e67cd0de4ce8373f2d20. Chain 2 (Bitcoin): anchored in block 957633 (2026-07-12T00:19:47Z), 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/USL4Q2007816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a3e5c0f1ffe34ddbb07501d38549536cfd2867b5862cbb3fb96738a37831e55. Chain 2 (Bitcoin): anchored in block 959051 (2026-07-21T19:48:03Z), 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/USL4Q2007819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd5d9280aae477d4334daab7a36a0084c0090d843ce4059e7c37bfc273a7e0db. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/USHM92016250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x892072bd0d4f831e407cb6ea5a57fbf7d9ee5ae754752568b88b65c497e40935. 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/USHM92016252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x477a7369e99ab776a75a7d697ca1b3e72770818ed24c096a15e22b794a7de93e. 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/USHM92016254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1633589e2a543e2c9c87885b995bcd2560fd89df095398ea385e45acdad57eff. 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/USHM92016255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb15d1faad9527339d5060a8da6b39da4fd73dd5c7cf7157e6575a34b6fbe51db. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/USHM92016258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f5523876394e581a9190e80868344d1ec353945deb865a25745c6f3a83630a0. 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/US3DF2208023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01556f65134cb3863dd27bc5c0b366e2cc9458106d87a966877f6078bee49624. Chain 2 (Bitcoin): anchored in block 958945 (2026-07-21T03:22:16Z), 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/US3DF2208042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e3404cb1900c423fdf814a67bfac281f4759f3300305a77d7cbd37b9b505517. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:48:39Z), 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/US3DF2208046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e4d92cc079b43a258f8c8b47413336b21c2ad836472e5ce6eb044f2d8dc794d. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/US3DF2208052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5e57f152799060fb4eb29af8ca276ff5b9e6ab5304cdc5ea1e7ec7eb8831abf. 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/US3DF2208064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5270584446c4711519c66aa6a5b01258516ae2a0d87ceb02ed4739d3b102cbad. 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/US3DF2208069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb13eaafc4c95b331d016fabf3ebc0dc92bc446e875ee498804b3069ebf01640f. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:50:55Z), 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/US3DF2229207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54cce539695dde1ea8f730dfc4a0a839fea3db1e4e53f6c4cb4fc10393ed746e. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/US3DF2229209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81c887baf4801b633c02034bcffc4afbc9f87ee09cb685853da8996d6c7b56d1. 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/US3DF2218786.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf738dcabc2a04549b92a5cf719e0fc677ca53eaa3917cbef0b1997521d565d47. 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/US3DF2218788.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7e22d5b7183de14f42300c7da417504e669176e27c4eb25dd401a389742a38b. 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/US3DF2218790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a2565cb39104665e75eb713b7789e7de8954dd79518e2240b98ec3f6f616315. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:50:58Z), 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/US3DF2218794.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b23ed5ae7a1624527892ef27c5393777de79f97f27c6a81b3cc9b8588dc8d10. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/US3DF2218797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95fee518344fed78fd6903d29b095c3a56f9a44c3a225ae7ccc9e1bfd82d5dc3. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/USHM92057559.
¡Ay... Mi Cholita! Música Andina del Perú
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb671cc2075aa5a3c4bb4bdb2a9435b05ea7b24b3908d8fb17b8379b8dc656b2d. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T01:08:10Z), 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/US3DF2218415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ccadbdc102170036691817d23ad0bd700925bf4466713d8a9fa5758b0fdd4ed. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T02:23:55Z), 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/US3DF2218759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x517b2ccb2e77d210cbdeef970bfea580b6141baa68836625a2a119d12a1db7bf. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/US3DF2218763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbe178872fcb3dbe8e258a36479ac6bae394f7968eaf1a5d6244a88d77a8280a. 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/US3DF2218765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f972bad5606bb701e1dfc6485fc2a789a0be8f7ae841c415f80aa5783cf27f7. 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/US3DF2218769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x151e7257b57ff9e791a541bbf7162268dd5530ff5af9ca216c285dc699aa7f9d. 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/US3DF2218774.
Selección de Carnavales Ayacuchanos (En Vivo)