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 0x95263625f060ca021dedfba9416eb4d917dffc033512fc3553b1e73837ac52da. 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/636492c5-ba02-431b-b99a-2738defa4152.json and https://artists.proofprofile.net/proofs/artist/636492c5-ba02-431b-b99a-2738defa4152.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 0x278dee71c55c83e74b90ceb04dd70e10dffab9d2dd9568ae52f254aa0737f7b9. 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/MXD781803515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78b7f42a501cadcd5890aaca85e6c8fdf61784d1078083b8bcc7f9902b16cb83. 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/MXD781803518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x583bbef1112d9b46793ea34b703ae24f986ca6f9fe618125e3fb057aa0b301c6. Chain 2 (Bitcoin): anchored in block 958568 (2026-07-18T15:23:47Z), 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/MXD781803517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20f301821a316e11d5801d5bb700d0020279ee2d6b77a749a0e43933d4ad6c55. 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/MXD781803521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91511f562a96b4c65584256abdc46121ff7c13baf603abbec1fbb5b450c76729. 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/MXF060122434.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x542848afedeb6f7d53f5b6b70f76fc267cfb58c026e0b1d6c5257bdb293a6c96. 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/MXF160201778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x830203d37ba0b6ffcd526a6debee81bf99e2ca078cd8c2dfc5db6886fbdaead2. 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/MXF160201784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0a0e682758e835788350d4004bee4b7197dac29495e0043ca9e624b90815659. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T14:08:15Z), 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/USUL10301590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x057d19575858c238e1034ad0be0d930c0356baf3149caec71646366e66a827ba. 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/USUL10301584.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e1eb6cd23bb4051b22e332308bf039d6e77ae36fc0a4a25c4e900139b264044. Chain 2 (Bitcoin): anchored in block 958571 (2026-07-18T15:39:25Z), 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/USUL10301587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dbf0b6f03de950f78544be3b128f81fc81faec0634bf1077d7430ae24abfd20. 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/MXB711600926.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d395b9f47bc3f88fbc4959d57a9c6112bfbf0be912e3a603dfc84446ad86526. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/MXB711600930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x213519deba77e9f73d95cedbd047e641fb813dea2e9e839a35e3713c32b2777e. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/MXB711600929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x356ca7550ee134668bfac7175f0072133cf9fedf65cad4484184b0b04baee32d. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T09:45:18Z), 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/MXB711600928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b2a8d57afddb401955c6a402b406871b17032e26a61ba98abf267f899022ff7. 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/MXB711600931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x573af8e1bdcb8ee3fb2110d6d028b1d5cfaadad96050249cbff389dc51ca40e0. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T14:12:29Z), 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/MXB711700986.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc2c0cff4aedd942797727634e379a6dd549d81b89985c6030fd40425f97ba17. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/MXB711701052.
Sonora y Sus Ojos Negros (feat. Hermanos Vega Jr.) [Acústica]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x136f5b5c19d0acb2bcb31823a9a40377337c9af723b1708ceb05310e66324e7a. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T17:59:52Z), 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/USHM91897980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x900d4cf7b3d398397daf322afcf37e1ddc9948a8caf22eef283b804ea68c5d88. 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/USHM22086959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd6efb2c755b861cb0158cf685006a78c9397c94b1aa4588208f84ea89c96f01. 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/US3DF2136349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb62429b13c67692bd43157235a4a2c722463de66b9a6bfa6b7f885a0b35561cd. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T18:29:15Z), 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/QZNJW2114628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98732ba50befea89425edfff562c0cd8daff953db8e870ba909c5dc2fcdf20f8. 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/QZNJX2150126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9f185a32c8e11a87e65e12a46bf69d295387f93ad061a77d5f24d39663f1568. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/QZNJX2150133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0af39af2e679d9a510e1e53665f95e8a72685fcd6fe881443d0b53374cd5abe. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/QZNJX2150134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40150432bb84c422c9f382fd9558f4ac90fb17957268d5d1492978a1d5e668d5. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T22:56:18Z), 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/QZNJX2150428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef903829cebb175fa31360c8d7375717e47aa59fa4b53ef9f1d4a0ac59f1cf75. Chain 2 (Bitcoin): anchored in block 958568 (2026-07-18T15:23:47Z), 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/QZNJX2150429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f69535b4dde5ce34c7172627f91ced2d4ecdccec05d04af5ae092e229a8a9fd. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/QZNJX2150430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5bb5078954a9c1dab2cd82a74da27e15857797f297c502f6faff95daa48e796. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T12:00:29Z), 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/QZNJX2150431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55a463a54743af371e3a6f3f2f0bb53061e4907f6ed6eaa75e2ee2318a40ee23. 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/QZNJX2150434.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94f193e1890c55672a9aae2523ab350da38161131961ee2ac57dad27f7c1ebcb. 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/QZNJX2187152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9488537bfc3b492b831dd4d6d1c9aa46e3e5cd04ac450263f430ad6779ab2e0. 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/QZNJX2187157.
Tributos "Exitos del Ayer y para Siempre"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf38b99920db6a24b8fc971666a6836bd62513d7d38e82fb4611cebe39f4aee76. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USCGH1900272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c8b80ab2bcc026b30b5b04f1d62d5409cd3fd06eae48a487e5d16c9b118d0d6. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/MXB711701020.