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 0xc8d1b69e313f000d03078547abea7d76660a5f091cbd77d8fb35e7455ce873d8. 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/162d3e62-3ba5-4a5d-b226-471bb4e8f0b7.json and https://artists.proofprofile.net/proofs/artist/162d3e62-3ba5-4a5d-b226-471bb4e8f0b7.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 0xbb24b3f5afdbef1b1d883a6d60822ce5bd13288dc1df7a9c34d3d581cc3f0735. 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/ES5021603296.
La Historia Intermitente (with Antílopez)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02350c15fc20567823b0339286fc7b238179b36d37d69438df7d843dd16f39f3. 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/ES5021603297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbffe2087db834085aed17693a96456cf51cb51da8e71b1c372134f6f7c980b66. Chain 2 (Bitcoin): anchored in block 958410 (2026-07-17T12:18:07Z), 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/ES5021603298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8fc93ca84b398167e1890b8efb8747550519cda9d9a252b674b393df8b08c3c. 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/ES5021603299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c5997aad930aca0b278c20ade04f45e22bc42a680976059635f48e6b8b1bf53. Chain 2 (Bitcoin): anchored in block 958627 (2026-07-18T23:33:54Z), 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/ES5021603300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbab10d477f246b9e3802b4b8b83db0b7d27feff4d0d262d624cde12b171451c9. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/ES5021603302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca29ce2ad1cb4af214d7d9c5f32621c45ae474857c1d76cdb6b92c28f78a4180. 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/ES5021603303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01968b8c10373ee0fcc633aadcdc7a05c8ac0ac90ab1b537eb0cdbf89969cb18. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/ES5021603306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb760b0331e607743e852cfc5cc24a51a86c0d493d788320838e27f243217697. 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/ES5021701642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbebacfb27ba29630fb3e5ec2f295e857cf5f0807d29ae80f0977920ff9ab0b6e. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T10:05:23Z), 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/QMDA72295804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84701807c72809807bf52c97b1b62e7a055aa6209122eb9b2cc652c2236d71e8. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QMDA72295805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc3047c8598374b1bc4602eac018069d27847ca1e6f727a35e805ba09486298a. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/QMDA72295806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc32ab43e888c020eb7e36045f2e4be1f649499b1eb51216a1ccfed76f9f7da71. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/QMDA72295807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa944e76ffe473ee2f0af80c04d45c189dd9868119bf6afdacc8ccd3118b25ae9. Chain 2 (Bitcoin): anchored in block 958644 (2026-07-19T02:21:25Z), 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/QMDA72295808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6454e7554a1ebb0b53d837b7236224caab1b6111094d0fdb33f3e9b2be153032. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QMDA72295809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dd2ab627aadc5c41fe6a9d369c49c4981e1e1d651aaaff57e902e82fcf8934c. Chain 2 (Bitcoin): anchored in block 958538 (2026-07-18T10:30:13Z), 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/QMDA72295810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f5fe223b9336421c64bdddff374feda5ed75470a6477708bf7d0f1012cdaa73. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T17:53:56Z), 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/QMDA72295811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5e9017eb38c64d582fd554727212c7f03ce2d1831e322a476d3f6ef393a82ea. 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/QMBZ92034557.
Y Nos Dieron Las Diez (feat. Travis Birds & Zahara) - Tributo a Sabina
Tributo a Sabina. Ni Tan Joven Ni Tan Viejo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x933e18753b308178d6940bc83db8304013711a47c10f78658945ac561145ab90. 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/ES5021901596.