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 0xefeaa5b3654714180a2348ece2a2d74b343164d51fa786b510e1e6568aa9a417. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c77059b9-c100-47a3-80bb-7057485b3654.json and https://artists.proofprofile.net/proofs/artist/c77059b9-c100-47a3-80bb-7057485b3654.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 0x11081e8db0ed972ada8185e48625e427e81934aee0d9b710e37886a36ba80139. 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/FRX452491672.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x854e6b3080503c229e8f4c1767c279935c67b9fddf1dd8a1983a08de78df34c1. 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/FRX452491673.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37a95ba218018ce40e343fd768301b6dfb2f61d82fb9a3c1a485519ec7e1def8. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/FRX452491674.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x504ff3dd4b79159ac7923e486d89324778c45ded8f5e186489eff66cff298de8. Chain 2 (Bitcoin): anchored in block 960125 (2026-07-29T15:38:18Z), 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/FRX452491675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59a842226f0ffd2a2f24b7b3828a68f83c37b1cacdb7f27e60ab6ff82281cd7a. 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/USHM22345581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd66ead41badcf54ec943800bad3e26571bd691612aa8e8551de35ec5074a0715. Chain 2 (Bitcoin): anchored in block 960185 (2026-07-30T01:32:48Z), 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/FRX452480967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11081e8db0ed972ada8185e48625e427e81934aee0d9b710e37886a36ba80139. 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/FRX452491672.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x854e6b3080503c229e8f4c1767c279935c67b9fddf1dd8a1983a08de78df34c1. 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/FRX452491673.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37a95ba218018ce40e343fd768301b6dfb2f61d82fb9a3c1a485519ec7e1def8. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/FRX452491674.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x504ff3dd4b79159ac7923e486d89324778c45ded8f5e186489eff66cff298de8. Chain 2 (Bitcoin): anchored in block 960106 (2026-07-29T12:41:21Z), 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/FRX452491675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59a842226f0ffd2a2f24b7b3828a68f83c37b1cacdb7f27e60ab6ff82281cd7a. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/USHM22345581.
La Primera Gran Reunión : Don Juan / Cantinero / Sexy / Mentirosa / Muerto En Choroni / Kung Fu / Cariño Mío / Regálame Un Muack / El Tema / Se Acabó / Báilame - En Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c7133a98ffcf501f76794de04b5c7d16b2a3d6ee2d705b55b8ac90132c354df. 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/FRX452480961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61875f3de83f56acf778f813d1c0a911a9ac833d0611c40e32ffd2456dab4e07. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/DGA072435443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cbb3865a250247d77e4d5211c1d9dfed5e8f9ae8d76a283504a415b491d5d24. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/DGA072435444.
Las Manias - Black to Tropical (En Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11081e8db0ed972ada8185e48625e427e81934aee0d9b710e37886a36ba80139. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/FRX452491672.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x854e6b3080503c229e8f4c1767c279935c67b9fddf1dd8a1983a08de78df34c1. Chain 2 (Bitcoin): anchored in block 957064 (2026-07-07T16:43:08Z), 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/FRX452491673.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37a95ba218018ce40e343fd768301b6dfb2f61d82fb9a3c1a485519ec7e1def8. 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/FRX452491674.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x504ff3dd4b79159ac7923e486d89324778c45ded8f5e186489eff66cff298de8. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/FRX452491675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59a842226f0ffd2a2f24b7b3828a68f83c37b1cacdb7f27e60ab6ff82281cd7a. 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/USHM22345581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c7133a98ffcf501f76794de04b5c7d16b2a3d6ee2d705b55b8ac90132c354df. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/FRX452480961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd66ead41badcf54ec943800bad3e26571bd691612aa8e8551de35ec5074a0715. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/FRX452480967.
Acústico : Humedad / Aló / Una Como Yo / Me Desarmas
Andas En Mi Cabeza (Concierto Teatro Baralt, En Vivo)
Mix Corazones Malheridos: A Puro Dolor / Que Lloro / No Me Doy Por Vencido / Me Rehúso (Concierto Teatro Baralt, En Vivo)
Me Desarmas (Versión Acústico - En Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88a10b299a6aa5c62128de3c36b693e279d5620c7c1642dfab007fde84b52590. 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/DGA0Q2367407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30f81237f871d95c4c06c5a20cd43849e73d4a2fb0786b80923d031cb6f0d142. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/FR96X2494003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dee0a0fb385e7d2d64e7366a700983aac13822c09d1302af444bc9547b56775. 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/DGA082396444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f06a27af30835988a363c7ea687ad33bbe53b83ebf95ec310ea5f4c5912ee27. 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/FRX282434896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7539e01ac44eb36efa18eb4d9aab0d2bc07930508121c0f61e6a93209a78c09c. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/FR96X2492458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c514cbef1014d0a36818407fe2df5650d0e5451bac1e590d5f02fc3338e2efc. 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/FRX762395864.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56639a875ba3a9bc6d7f78aadc1d7f78ae7b9350c73128948f688e5c036b5f34. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/DGA0P2302697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf8bdd0bdca8f912eab0ca272df5c4c1032b10397ec381ae595d5c21d21c9341. 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/FRX452427057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36cfd8b63e1dad062531d97359118338ca842c8fd7a583acc65a64b4646236c1. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/FR96X2491627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bfd39fea3232d071e4f9558ab02575109ea17edc4aaf0ce9a06e3f2e7438acf. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/FRX452427058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45b3e596279f303005812999707067cc630b2a4c0f06f6cc5c14685c732ecb06. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/DGA0H2316549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbab343bae316be7aa82911358b3dab223be0b9bf19076cade1048a6a0e9dd08d. Chain 2 (Bitcoin): anchored in block 960354 (2026-07-31T05:48:18Z), 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/DGA0M2300586.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b494593595a785ef935942f07f4ea9f1a6cae15393ffe7cbd128aa2ad53a6a0. 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/FRX452427059.