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 0x744458464bf59f1a6513760eb3ba4a080e3180ae21c9dac5fceb91ff3c3994d7. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c72a428e-7acb-413b-b2f0-09443a96dca5.json and https://artists.proofprofile.net/proofs/artist/c72a428e-7acb-413b-b2f0-09443a96dca5.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 0x92bc728e9cc204e496448836442bd424b297f8088f8400f67d98c0cbafa73bf8. 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/QMFME1583706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55517c616df8f2aa16e0f504809417473571a356af0b701b0df24a2d9dd8704a. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QMFME1583707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dee3e022246ef61760971be3d28a7ba7b6db36e30db492866961b20b70ba82e. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T08:34:04Z), 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/QMFME1583712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25093ae01b398ed35d32b768f8493661c595068b5833bacd5aec21120da5c828. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:19:13Z), 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/QMFME1583694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70801d9b76a237c9d0989139bd8a8cf22819aaf0099dff1742d5264bc1e505d6. Chain 2 (Bitcoin): anchored in block 957603 (2026-07-11T20:26:17Z), 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/QMFME1583695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95ff6f5ad77202c4674a9a0cecb07ded0b01ff4935b247ee439241e2f5c97ae6. 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/QMFME1583703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4b354d02abef7ecaa0c974a3c781a21272502b0c0b79b0b510704c4c440d6c8. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/QMFME1583687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x406ba69e9af7667cb6f1525d2ca5d92fdf98665c553807f65ee96bd5e96a2315. Chain 2 (Bitcoin): anchored in block 959065 (2026-07-22T00:54:33Z), 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/QMFME1583689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99650c965dff76e92f9735e33929ea0d678397c88cf6a614943927e7b0f57988. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QMFME1583690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36118f5fffb9f3ffdd604e2e2c24ae8e79ae3edcafb71eba5010dae04dc4bc44. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QMFME1583692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a2df69691296448ffc3af5a378eccb3fa55a65eeb50467ecb039f48ddafa659. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QMFME1583693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd26e9c6aeffd5b72982e5d15bb4cd64e0b9280a512f13fa89495d77f11c03949. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/QMFME1583669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50d70c2a326ad502415b8218547b0d553c9184c4756d6c3898fef95e61406353. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/QMFME1583670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ee67ba1870c7ac0598d99a57373f50df2ba526183d117f2d696e8cfa8b01e6b. 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/QMFME1583671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde45c51cb3508150448e35cd188c3538ad29534b2a6a0e27949c3ed578650de2. Chain 2 (Bitcoin): anchored in block 958329 (2026-07-17T00:28:20Z), 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/QMFME1583672.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa181909b41213df80d451479372d97e2d52aa8c49949995a0a10e41daccdcf35. 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/QMFME1583673.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8c17e3fed564e4ec4ac6414de4d4629692a7ea78f790d7cff5228bda8a26a5f. Chain 2 (Bitcoin): anchored in block 957603 (2026-07-11T20:26:17Z), 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/QMFME1583674.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57bea80600cf6cd1f8f2309b96f3a11d201c4ae1c6e0a80795bc5b3ab9f666ed. 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/QMFME1583675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3aeac531b9a317c9a81daab06abfcadc3113ce692553b71d27cf6ff36ee88ea. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/QMFME1583676.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4ac22a7a7996f595bc8d3e176d961263bb6ef7976a71e0d1f26537099c278dc. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T14:59:38Z), 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/QMFME1583677.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49cfb895de9799cb52bb92d0cd0628c837e55dc9601d6698f7609742392a1706. Chain 2 (Bitcoin): anchored in block 958122 (2026-07-15T08:02:29Z), 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/QMFME1583678.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfbf89d12e20959c429a9fe8f94eb84ea6a3d3d93f6d1d7db750336d7e124cab. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/QMFME1583679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02863bb087b01fe24467c3dd7c848ab1270536eaf698d54867f15c08bf0efb07. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T08:58:18Z), 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/QMFME1583680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e8587a1b39d8d1411004ce75b0a6b079f2097393e48bd62eb9b05220c9001ab. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:17:54Z), 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/QMFME1583681.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe47b58adee281509d9c150db77b27ccc6b4843227590c2d1d099f0a51d8b97c7. Chain 2 (Bitcoin): anchored in block 958918 (2026-07-20T19:52:21Z), 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/QMFME1583682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c6997dca7c7cc9daa1db9e0d59f6022227c1ffa0cf23f4de6b01e2a552b5d0f. 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/QMFME1583683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb908875003f383cd9fe499b649726bffe9c63b1365701910ebd76cd986e9720. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T14:01:19Z), 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/QMFME1583631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaf0bb5466268555eb11ff8fc9d9d97712f59191a6dda32d46c01c7487664b4e. Chain 2 (Bitcoin): anchored in block 958686 (2026-07-19T06:43:29Z), 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/QMFME1583637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9f0e05fc5fcd5ee1af445580c83d1527631046c3a6eab4b1b65dfd12ceda46c. 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/QM7281578029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa86af844e6f72f4057fc0708a72386ebb6f44b165008b9fcc269ca5b063dac22. 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/QM7281578030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8c63c64dee914153a626c77892bfcc1188f8ae86a6e112891319addde49b6df. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QM7281578038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0deeaff9aae9577cea33b08c5a71b398b1324921adcbe32fc4d4975f15b1fd1. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QMDA61510305.
Lo Que No Me Grabaron, Vol. 1: No Te Voy a Recordar
Lo Que No Me Grabaron, Vol. 2: No Te Voy a Recordar
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3820a9c27daca7902e096f017fe0f14e8bf540e5c3272b01a429c8c25368cf18. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T08:39:35Z), 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/USCGJ2207793.