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 0xe12fa31059f4b999277a8fc2807b96fc3e39028b5f0ce7a24a1ecc8678006ef2. 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/27e459e9-8065-4675-aa3b-47a689f14e1b.json and https://artists.proofprofile.net/proofs/artist/27e459e9-8065-4675-aa3b-47a689f14e1b.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 0xf2fb4201f8eb6d446e3c63a565f9819e2f9ba84497e6394b9f2455085f778fd7. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T10:53:45Z), 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/DEYX82213787.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b15325b5ca5374a0923ce2e10f857916b280cc79a15e41fd058f329cb8c7a27. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/DEYX82213778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ecabca601cd5416df068a84997b72c5d86c72fdd595d8d98d4bb19e50f97de3. 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/DEYX82213783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb382891a0009c6536dbf289d2cd1438c285bdbc0d4019cf2f4353c080a97db10. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/DEYX82216537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8e563b43302a215b73d04f873755c09a9898c64102df21ce4e1c8b1d77c16f8. Chain 2 (Bitcoin): anchored in block 958404 (2026-07-17T11:34:58Z), 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/DEYX82216536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0feee95e143e083918bf31e7f901dd96928b60a37e0ba8ec7df92f3824b62ca. 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/DEYX82216534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x702dc3cd551030e7cd3806bf6c882c6b86d65c07fff70598a03ebc5fa321bed9. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:08:44Z), 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/DEYX82216528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68a5895a9b0f06765ced5388a8453ae9b9797512abf3cce7d77faa75b908cf5e. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T21:47:15Z), 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/DEYX82216527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e633b11fbc96a95c4c1576434cf33f023b558c3a6db4b0b3ad8ad7fffe6db45. 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/DEYX82216526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0f11e91a52d4883d062e47c5b1d27aed6731d95bb1025188e78fee1f337183a. 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/DEYX82216532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8e34f480cc0e61a60758e5b4c060bdeda73f54a8d0ac91b2d257cefc37d1d7c. 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/DEYX82210626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82364037300d78953a17a4dac43e3ab40f3d6a9447f38528eab732360a7607ea. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-16T00:13:37Z), 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/DEYX82210632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ae2acade90c9bf174b99278cd7045814e0d29c3233bad78061fc1953ac2d379. 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/DEYX82210621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7dc44e9eb3683a606f9900ecfc50dc7ba6e5dd7c0fbafc09297cfc46661f5ae. 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/DEYX82216698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc019a0338746be06c23515e4b6eb66c7698bf9cefdec2a4bc34d0f0ee1a7bddd. 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/DEYX82212928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdbf60c157acc87bcc01f100d0ac4b496f0b73654991e874ade5ab1114d8745a. 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/DEYX82211748.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03895d37ed2bd26c23c813e50e4eebc1493025b63cab605f1933e3cea3c660b5. 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/DEYX82211750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc27d403ebe9b6f7ea3064ee1c987084209ecfa725cab137a2ecfbfaca5d40553. 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/DEYX82212679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ef12bdeacf2625c172d9997d45201683255b8fb830746aca8dfa6d6892fbb19. Chain 2 (Bitcoin): anchored in block 957780 (2026-07-13T00:36:44Z), 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/BRMAX2201166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7baeb4669ea8f57b85306d2cbb38b20864280304697775398c093c7a165466d. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/BRMAX2200354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0ca0140a741b45a677c85c67cbcdfd348da6bfb7fcdcd3bcb28519535189836. 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/BRMAX2200352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5f4a4c66d78b0af043fc610a61eafd689e17710b870b718a87cb0bce6bae52f. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:22:38Z), 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/BRMAX2200347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dbf76a4f780843249c53c2709e16acaf4e00720924baf805eb3264e038d578d. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/BRMAX2200348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x712bc562b291b2f8f64bec60378679f4034c7d9bc3f25f4feb309702cae7ed67. Chain 2 (Bitcoin): anchored in block 958864 (2026-07-20T13:02:02Z), 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/BRMAX2200346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f36196ef7ec432bc4246aab6c0482cb9f10da0a3149373533080bb6c3772d4e. 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/DEYX82211497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ad263130466665c170768f8d32b0578c54e48a0c9077b8c770331cd3a186a56. Chain 2 (Bitcoin): anchored in block 958775 (2026-07-19T22:39:21Z), 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/DEYX82211500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe09bbafd71ccf1ab4aeb79d62b1263d0a13bda057b3dcf935fc1cfd107a43b51. 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/DEYX82211491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe169f39ca9ebd3c8d123a172e2ef3ca8181b025da9f76f300822a2a7f3d35ea5. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/DEYX82211493.
20 Super Sucessos: Cantigas de Vaquejada
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05868c49e4b4799ef36b9620f73bc9d3194bb708a57ea9c89fb3016bb84b196c. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/USANG2019865.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x775328b04578c2d74d973281e5bae90a51d4aafcdf2fb57cf2073bc146d34999. 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/USANG2019884.
Parque José de Brito, Remanso - BA (Ao Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x462fe8a591f53856ff51d1a34801f8e8dca865018bed780c9058b7d7520560f7. 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/DEYX82215962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0b044c596f0b1c78a91c07f91a124bc9820f05fcb692e533b7050623160971f. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-17T01:01:27Z), 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/DEYX82215966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1043a65d2e711e718bf8512fc460b205d0f523c54c771b6b0eeaa67e098fdcf. 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/DEYX82215961.
A Cara Metade da Vaquejada - Em Tobias Barreto (Ao Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xede61b777cd34222d2ecc2efe450d7db1f1e0cfa74e397ebceba10ecaf5d5608. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/DEYX82213346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x712d0499cb2033c61ddab07d56167b2890d1f2ae02f7fde4e6848d0ef73ba3df. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/DEYX82213332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cb79b68f6c49144af3f5d09d18e26487a12e5fe83eb0398e534cbdffa0706fc. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/DEYX82213342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfad118c46179bdf61d1c6aa6ad8f06c850d9732ec6d6eca3a5cb61aab49da0e7. 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/DEYX82213340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dcdb90467a3c274d9d9671d74543b03b4907dde1fb52b6649d2a7ce181a405d. 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/DEYX82213337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x347d72f3062bb0d25a20d7c7a22b2ee14e059cd727d17263def5bfdf88e66ee7. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/DEYX82213338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd60eed36cf5f2f078330405af0c290b1edfdac78ec67b6260ddd6447964c94e4. 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/DEYX82213331.