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 0x64afae8154ebf6c70a9e9fd8e693af2259627b3d69260fc8a3d88974d0778b29. 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/aa50c9e8-28c1-4b58-914d-ba4c09be8014.json and https://artists.proofprofile.net/proofs/artist/aa50c9e8-28c1-4b58-914d-ba4c09be8014.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Popurrí Perro Con Perro - Víbora De La Mar (Live)
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 0x67a0532c6adf31bceec66233821e38e4a7ef6fb65eb69757ea383e1a10b27cea. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/SE6SA2206695.
El son del tlacololero (Instrumental Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7ee6b819c2cb817a18653a61c440d761deb5a9121158593cdaa956b78573f14. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/QZGLS2369163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb7e2195901e454442c7f826a0c7b6ca95ef6d9a2493e17c0554ba41d8845adb. 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/QZHNA2467925.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x633179e609954e5625aae1c7d490fe84dc8450b8159ca6bf05d555a1991f70dc. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/QZHNA2467926.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x401f71207c50d2638968e3f1f7d496a6f497e35da047354482baa76dda810ba1. Chain 2 (Bitcoin): anchored in block 958722 (2026-07-19T11:03:50Z), 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/QZHNA2467937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06d8773144b19d59745fb5955940987a570fcea8be5c8d4a602d06921ed824f5. Chain 2 (Bitcoin): anchored in block 957744 (2026-07-12T19:15:44Z), 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/QZHNA2467941.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e41392247d7cc23d53c49af9f277b5cc808175b4947ace1b16b0403eb280698. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T02:00:12Z), 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/QZHNA2467945.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7ed8797da42c9336dfbaa344649441ecb1607ebebd56f12a5ccdc983c10c5b0. Chain 2 (Bitcoin): anchored in block 957745 (2026-07-12T19:20:20Z), 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/QZWFQ2474467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74731655eca8f4f9470bf224f6e560b0416a39ed349e03df32b3776b4f821f2b. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T21:20:45Z), 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/QZWFQ2474468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9c1f16af5cef97816a08527ef4b8acac310d08d1bd699d8767769c0c144bb84. 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/QZNWU2589238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ad7223e6eabfbcac07aa49c3aef425af68a33310d89a6b6b765bce94910288b. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/QZNWT2578867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedad67407c4887637a6a22752a2f7eaedb66b730e05035bf2d23a14eb76f5726. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T14:50:23Z), 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/QZTB22584165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe30ceffae2f13f7cff8da135e82940686de77fa1fc29c4deac057276ba2dfca7. Chain 2 (Bitcoin): anchored in block 957774 (2026-07-12T23:51:20Z), 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/QZTB22584166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2281bacd23e15b430a0e67b35f75c7fddd6687eb871e81c251e3e4c8909cc007. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZTB22584167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21e9e402f035d66c691c284021363ff33cdee534535a335b7f54327942c4cc35. 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/QZTB22584168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19809130fe571ee1c1daa0a7c889971c2db65708150046a4448e9716670d36a5. 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/QZTB22584169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a6ee6b576185c867009a0536e030dcff2d3b95ee45935b9a556487bc6994510. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/QZTB22584170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc0a7f8a2207a499d68bd893ba24516c4406d85d8f641f9eb90889ed9536bfbd. Chain 2 (Bitcoin): anchored in block 958380 (2026-07-17T07:07:02Z), 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/QZTB22584171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbec434e5be3630b301dc883d3aad0898dd2d2c0b3cac3068ee6575f12dbd218d. 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/QZTB22584172.