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 0xdb378d625235d3a9d788967ffb369a385cb048be470576110b39f221b39d3df5. 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/b48fded2-10ef-4af5-8e74-e9f910510737.json and https://artists.proofprofile.net/proofs/artist/b48fded2-10ef-4af5-8e74-e9f910510737.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 0x26d6354763e288fa8b2e9d40c3ca564f6cc0e9611f5b8973c799d192a9cbc1c9. 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/QZ9QQ2300417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f96976b05e392a781043da29596561b268d6a1f180658b44c5f47869ee847b1. 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/US3DF2439133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc1a7fce03fe453e8306d2a08dcb72a908e8c897ac12f8bfa3525e62a288833d. 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/QZHN32458618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x515867e1740294f4d75c61f7ed2afd89de78e23c5d2a56cb7b0d3f0b81f04dc7. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T18:47:29Z), 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/QZDQH2411502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x139bfc9c003cbeaa6903df66f0a67402c57a3fea9559d3d8418e9abc2721d873. 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/QZES72450326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ddd413d1a3fb7248f8553e5634c84f4a39049bfc8f088959833320f6efe7f1c. 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/USCGJ2422068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13667cd7aa9cb57c43c93b6df1fdd932d2933ee57f4f52f0bc6300723d4f0258. 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/QZFZ72461405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9474d1f5068a06b39f462f10700818be7232135b10c0049fc5f13e45afa7b237. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/QZTBD2329209.
En Vivo Desde Mexicali Vol. II (En vivo)
En Vivo Desde Culiacan, Vol. 1 (En vivo)
En Vivo Desde Mexicali, Vol. III (En vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c9bd1c895530cb2b1b0e816ebbebf511f1d2fd0f1b4f92502fdff37bc6f7014. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/QZMEP2290903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bd5ffe54aba25f671da6003ce8cf1196a2f4f6fdca6c1c85ec8616f5bf14cab. Chain 2 (Bitcoin): anchored in block 960288 (2026-07-30T17:41:38Z), 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/QZMEP2290905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62aaca284b8716ded11916e7a61f6c58aecc43cba4ec6b2768bc1570c680c95b. 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/QZMEP2290911.
Don Valor (El MZ) [feat. Grupo Arriesgado]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12e43bcf9eafa002ed3b6bb46e891e8696ce5308171ab2342a485a2ab8f46762. 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/QZHN82283129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2e9322d0405f5111e36a5c0ff9211fe84f8184be0fefc4c4112722441bcf001. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/QZHN52202165.
Los Tres Enamorados (feat. Grupo Arriesgado)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3f01062f2b985356ca98a00778fe79baa08814262e5d22751f5a69a036d04b0. 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/QZES62264533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8163c73efcd6e83b8d3e1dec18294b11d01254c68aa02627a41eec983440d9f. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/QZHN82283142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdac7f223bf1f818baed8b8116605fb52e7412c2a4656716e53522e626e806cbd. 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/QZMEN2109335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f785b6c239047d196d1ed63ce2f7bc89ef4e805182915e901c93a297b7ebe0c. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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/USL4Q2410053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd313323133a8897d380e90fc3fca42c216eb2b60b002c2b19303b8b3184e45d. 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/USHM92415564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78fa821ec21ad29fe48f71193098822c6151b7167a794fdcd199812c4563d23f. Chain 2 (Bitcoin): anchored in block 960485 (2026-08-01T00:10:46Z), 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/QZK6J2368275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f45d6b0191a40d0211e0b292b338771291fbafb6b05d196e10fbbdcac804aa3. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/QZK6J2368276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff3106f40425796bd5569a0dc0efa3245bd9cc9ec6e6326a85cb0cebdddcf689. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QZK6J2368277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe498cbd36d86b737b06e1ab109d622ac87ce9fbcdbf6f5c6bd2198b0eafb82bd. 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/QZHNC2366095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1cdb71752d4c8a3934df6b6e9064ef3f238292f9348cc59c804cf93714a7c15. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/QZTB62215481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0536681f04243047c4b8ad39274594053ebe61758e9fd88b10f73a63312848b. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), 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/QZTB62215482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee55e32e37301f9081ae6c8df6866595ffca7b1f2dfd1328d0b3160cde6650fb. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/QZPLS2262058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cacdd2543f60ce353e42c3ac334864b523564687658484c078e49bae3c46220. 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/QZNWX2229616.
El 8-9 "Bandera Rusa" (feat. Los De La Setenta)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09cf7b6839bae391ac8d13c76ea901b2376f0449efee9bd3467e9ccb377dba7c. 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/QZMEM2223990.
Don Gato (feat. Los Juniors De Mexicali)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5239e0338283c91d8fa482d8f5d6e5e484d9fa08fb9825a55b64e1782e3516bb. 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/QZK6H2216675.
Abajo De Aquel Alamo (feat. Cristhian Leal)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x359871ed7aec62f71ccbf822e68ac2b68d2b494e44fba28720e6512fea7aa8fe. Chain 2 (Bitcoin): anchored in block 960170 (2026-07-29T23:52:38Z), 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/QZDA82219563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33e71ef3653be7cf6c14a5a9dd23f677f7b369762ea2a65154d5b7c8bfa7fd62. 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/QZDA82219564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c84d84d5fa362670c0e136a16e0121d8227ab57e6d3cb52c2019cc3bc6fb6f5. 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/QZDA82219565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf15108a268b39413688c99a55c539d19c1dc2b1482728cd78dfd50eb85812441. 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/QZDA82219566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43e789fa5a6747461286bcd7e81d49d59739324033ee3ffc54c4f2e27f9c761d. 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/QZFYZ2211264.
Varios Hablaron De Mi (feat. Los Maximos)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x565567b3bdbe0ee5d386d314135d506e440964afce9d6a2fb59c6959f308bd4b. Chain 2 (Bitcoin): anchored in block 960181 (2026-07-30T00:53:20Z), 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/QZNWU2168912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e707ed559480a7bbee26578a441f202537f699fd16b748629e8ae612f7f5b0e. 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/QZTVM2340583.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3eb4a3629c4d17e3633f1e1e1b6e2982b7332a23fa88da060760d23a6061d7d8. 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/QZW9N2246711.