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 0x416e54fc0f44a52e32d4a84750f1bfd8006407a7f61cf1be3e148e625bd57e48. 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/e73cfc58-bcd7-401a-bd79-18cd63163db7.json and https://artists.proofprofile.net/proofs/artist/e73cfc58-bcd7-401a-bd79-18cd63163db7.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 0xe501e3320280dee32d1d2b0ac78dfcb6203eac9c4a9750355daa587b166d8031. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QMDA62129266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf54a8b9867e38149d3689fda7f6cce8b7255b87d5e412172aa884716c6d120eb. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QMDA62129268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7aa9ca3641b3b0ca442b0f45ef60957ed1da15b77d2199507e21ca9f11e3db64. 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/QMDA62129269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6ba1a4a68e8ea1ba2d85b364d30380e0615f4a21a2db5be6876ae0fcf3ed47d. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QMDA62129270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d03683298e6c9c0954e20d9eb883651aebb58745d40cc231d359b793c93ff33. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QMDA62129273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb744921601dfa6c972e556e6ba03266ac7d106641942095bfe0f964bb717f37. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/QMDA62129274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98ea6e7232529c5116a7db09bfe57ecb706fda3bc7bfe62f4c3159af4762b369. 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/QMDA62129275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5aa57f01e89cc03ec6f7b469c2176e677d19cd95da94baf81a16a5c047bfcc67. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QMDA62129276.
Mix Éxitos del Recuerdo: Promesa de Cumbiambera / La Coronela / Arrullo Mañanero
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87ebf723e0cbc3dedc4eb9c7b700f33c5c777e00ba0e8a09b07e548904b90497. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QMDA62129278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94bc01f2addba0dc8c960b32988d62d899f253db9f907e33331e4553a11d0661. 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/QMDA62129281.
Megamix - la Flaca / Guaracha Vieja/Resiste Corazón/ La Juventud/Cintura - Cadera/ La Llamada/ La Callana
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0136e121e9c1d12250b88d5b7cbd58e60371de0fc04ed164e3c0de8d8ae94d29. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QMDA62129284.
Megamix - la Fiesta de los Infieles: Pica Pica/Quisiera y No Quisiera/Terjetita de Invitación/La Flechita/La Coronela/abrazando Mi Gana'o/Tengo a las Dos/Dame una Respuesta1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa80cd7bf51043441af9aff9b4788104e0e0985faa59506e4db5691b604fb61e4. 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/QMDA62129263.
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 0xf1f629d8b6aebc02e2611d7bb2e0c219bbd74abea5e684cc632b71f9fa97a721. 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/QMDA62129264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2353cd311d7b00282dc205ad6e327ff38abcb23ee438655570636dcaef973e03. 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/QMDA62129265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07f02b34076c41cdfade1a2ce13b567fde4e1c25633479eb1e7b80f6004b79ce. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/QMDA62129267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ad8ddd61f1b1c4db746db3a7605884736d17df2e99258dd2c4145436178468f. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/QMDA62129280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10f1e8ddfbb41ea9edf5108c1e44ef5bd976349c8123fb4407997faafea16da9. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QM4TX1716482.
Mix Corridos: Concha Perdida/Que Linda Eres
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2026022b053b0411887388b7dfed636883ff086c4b4fc5a3ff5adacb9a59e771. 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/QM4TX1716483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda3efce600f4c57347bdbfd63eb82373fbfff8a3013c5b0148517ff23c355524. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QM4TX1716484.
Mix los Infieles de Santa Bárbara: Por Potrito/La Culebrita/El Chivo Gay
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7de6036d009b44b7801b5e2d61f62c0e5665caec0039663257f44bc51eba13a4. 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/QM4TX1716485.
Mix del Recuerdo: El Gavilán/El Perro Lanudo/María Teresa
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07a603b88a37abdf133a4a3abea622d986bc45b72a2a672fa072847937bce7e2. 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/QM4TX1716494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x455d7531de4c52215b49c54c4961feb76f27e229fad632490f9576d4143808b4. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/QM4TX1716480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77a3d37c16548275946b1a192e52a094f128574aa85476bf52c4e6d860e9baff. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/QM4TX1716481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd06a2264bcfd481b05309bf3e8747641e2868fa99da67b8ce06e9fd6ba689ffc. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), 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/QM4TX1716488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x973d7c1398879d6f731f0f0751608b61e3be012774cf51680e9716ec857a677b. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/QM4TX1716492.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x962f3c39ea816d127623b4a2f590eff40f104dce4594cc2bf2a9ba1c156c5bc5. 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/QMBZ92188465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2527549607d1536056f36e6bf1d122a2e835b7442926267974fb936ffa908a82. 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/QMFMF2017552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec292ae61d34daa0b56c65843d3ca825329ccfa10bc1fb4121e6d62b40e061d3. 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/QMBZ92093522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22fac4403af59505c9c9c1b0f8a37479a6356a9949674218741716e6972ab8a4. 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/QM7282092596.
Mix Aniversario: Ni Tuya Ni Mía / Quien No Le Ha Llorado a una Mujer / Por Alguien / Cuando Vivas Conmigo / Rendida a Mis Pies
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6170b81bb2d58f3fded93dcf9a80c02c3d2f463d6292b7bca942bfbaa1c0a853. 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/QM7282066339.