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 0x97df1d5031c4f12d516e9b53797955535a1ecce742e7e0b40b0b7cf5a5323008. 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/30330aca-c60e-4aed-a997-856ecb79d678.json and https://artists.proofprofile.net/proofs/artist/30330aca-c60e-4aed-a997-856ecb79d678.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 0x16308e7c323d2003ba0052a3d2cb4df60a6586bade10d54aaf0d9e65ded460c9. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T14:14:45Z), 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/ESA011790882.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b6896a3cc730f8bd91db3a6171294d19a385ee7e66d92bd86fec79b92ebce7d. 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/ESA011790883.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d48d1e2a91a9730aa095a2c11564c14dd374111b5eac7e0525f5004a954a7ab. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/ES94B1800002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4ab3a2b5d4506937c876fe636ee19a0407ef78426985589b18729b231d1c710. Chain 2 (Bitcoin): anchored in block 958827 (2026-07-20T07:35:21Z), 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/ES94B1800024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34c8f094e614bb3980dd9b8cb33641855bc1f2bf23492af1c80b5b3d10be5004. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/ES94B1800001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e40686a4376739122e5c4b8b868e4214ef08a5f8080c05b50d2b754752b9f78. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/ES94B1800027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cca44e81e890b2017c3541a82b1f302a5d41ce3aea431bdce220ffa87334154. 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/ES94B1800028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47577deb724ed85a09fd2059ea5b83a34d71ac7ae68ba3fe08dd4386d9f2e257. 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/ES94B1800029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41f85be4331ca1c84e3c638465fc9e482ca95ba2fe7f86ce0a73125436a355c3. Chain 2 (Bitcoin): anchored in block 957884 (2026-07-13T16:55:06Z), 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/ES94B1800022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8605b9115074529543b3e448c9601d745c2319b621644e6701ee3e94514739d9. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/ES94B1800030.
La Apuesta (Canción Original de ¿Qué te juegas?)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c4044a437941b3baeb8f23e00f3d24c9b4feca3fdfd3efb89b4af248928025d. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/ES85D2000005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ad0362bf412325b06fe4e905e83e05b13069b7087af6c96cffdb39fc91d1c8c. 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/ES85D2000006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x507a869b1ce0eb3e73fe1daa7245fdb06c5861d90d762253bcc42eb5a42d4e5f. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/ES85D2000007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58c2922a785d5a3d204a612d303fa894556e29ea91050fdd81884f90e3fab125. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/ES85D2000008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6604821f4c8b94c15a15400bf2afbe4db326b67952631582900964108aca584a. 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/ES85D2000009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90fe605b670104e62aca0a73ccc05b987a79c791c1d647d1c65232b6184ccf7e. 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/ES85D2000010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cc84ec12155c6a285ecca2960afb114b011a8237960b6a507edc9a870a4de5e. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/ES85D2000013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fc648b02f232921eeefd9940ff69867bbbe24a85136147aa21e769b17d8fef9. 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/ES85D2000004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ad0362bf412325b06fe4e905e83e05b13069b7087af6c96cffdb39fc91d1c8c. 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/ES85D2000006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1921e3bc5b14cd2a76fe4ff151acda62f16efb1807c82e86b08339892d11fa1. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-16T14:13:01Z), 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/ES85D2000001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0ff5ef3d88ec4886f228f99c01324173a542b727a525da74e5300dcaef47ff2. 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/ES85D2000003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c4044a437941b3baeb8f23e00f3d24c9b4feca3fdfd3efb89b4af248928025d. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/ES85D2000005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf2a34983b3aea670a912a725736634cfbc024d8d62e300642f46ab38cdd0cb9. 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/ES85D2000002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x507a869b1ce0eb3e73fe1daa7245fdb06c5861d90d762253bcc42eb5a42d4e5f. 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/ES85D2000007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf370d3113bc1e27cde401e6782716aadfadf9e8aec4b760e7330be8b08bdeddf. 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/ES85D2000020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e4237c057037ca8012c1f1bcce95d51b777d6ef009cc81acd89be6304a73974. 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/ES85D2000022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f8172412133150ff098964e2b6d5b93e6f3feea2d2276b24da1c6545b05fd12. 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/ES5022402038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa13b9e37b2f62b24c32b75765e8fa2fc35a618c0d404635f6a6b34e7a52130e. 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/ES09S2300126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa13b9e37b2f62b24c32b75765e8fa2fc35a618c0d404635f6a6b34e7a52130e. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/ES09S2300126.
El mejor de tus errores (feat. Alice Wonder)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x205424ded959d0251d0f8198385369b5c9ed79030a0ff949305310f0f379f247. 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/ES5152001076.
El mejor de tus errores (feat. Alice Wonder) - En directo Wizink
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b9319e119ee1ebf8442b95efcf26220608710492b4ab6e6b6d82aadb750ed3c. 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/ES5152400807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1159fe02d3ad37c76fcc515eaed01c0b326727bb5ede7d2ea6f3a5d26657c91. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USLZJ1966595.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1159fe02d3ad37c76fcc515eaed01c0b326727bb5ede7d2ea6f3a5d26657c91. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USLZJ1966595.