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 0x04eb803444d589c61f298638fae051100e3f1d614ef8e3aac36b12eed51a0c23. 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/93ddc740-247a-4a79-8e66-9d80edc4d5af.json and https://artists.proofprofile.net/proofs/artist/93ddc740-247a-4a79-8e66-9d80edc4d5af.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
I Am Mad (Original Motion Picture Soundtrack)
Miss (Banda Sonora Original de la Película)
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 0x34d00e078438b9e7664b8c990dee70b9dedd5fb4b2c87e7c7343201b5dc5aeab. Chain 2 (Bitcoin): anchored in block 958121 (2026-07-15T08:02:12Z), 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/QM7282042808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3e6e3eabcd128efe23694587bf8c96e35821ab4aa2dc90b3041dfdaa9400655. 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/QM6N22192408.
El sonido de lo que nadie quiere ver, Vol. 1: Asalto al Regimiento de La Tablada
El sonido de lo que nadie quiere ver, Vol.2: Operación Algeciras (Malvinas)
El Sonido de lo que nadie quiere ver, Vol. 3: Narcotráfico, crimen y discriminación: ¡así los vencimos!
El sonido de lo que nadie quiere ver, Vol.4: Nazis en Argentina, Llegaron, garcaron y rajaron: ¡Esto nos dejaron!
El sonido de lo que nadie quiere ver, Vol. 5: IA y ahora que Japi hacemos?
El sonido de lo que nadie quiere ver: Especial Navidad 2024
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x055c91e4245cfc5da8584a80683d4f868194997ea77131ec0ad8badd697bd6a4. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/QM4TW2597905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e4d57a1723a34fbae28d913bf33e2fbb09da17756abb1f768924ae7d8d70969. Chain 2 (Bitcoin): anchored in block 958832 (2026-07-20T05:43:55Z), 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/QMDA72512234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0f4b92eccffac47a0e1121a70dd9717030e9e945cf522dc07f0e9d9bd0e33aa. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QMDA72579815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf33ea202a03dc7b71d3a5ac5aa6cd798f829ee93e136eb74e659d548a5e453a4. 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/QMDA72579816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cb2dad13505412dc58713c2c0b8e54e7c0affedea52b012658d34bdb5357aed. Chain 2 (Bitcoin): anchored in block 958785 (2026-07-19T21:40:06Z), 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/QMDA72579817.
Políticamente de izquierda, artísticamente de derecha
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fcd85162377deca9f7cb004c7ab9805825ada4adbee3823dfa053475fd6f384. 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/QMFMF2520062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8f13d52dfd6d67b765e03017f1c661b9d974e6f760d9675c8067c70dc252e68. 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/QMFMF2520063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa6895ff7850a409424e4949e7030085fd18d5350943d4f6d85760a31c67a8d8. 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/QMFMF2520064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fb5d0b61cbe144bdd8dadb0437cb160276378a5d30620e8650a78864eba78c0. 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/ARIH32300013.
Pelo Music Quince Años - Colección Pop Singles
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cd903c7692e6bbdb1507c2761da6066df8d8ae1e6f68479d62258de2a60ffc2. 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/ARF840700469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43a198f3704902e50e39b7bd1b504c46e0018178c70f6987b4695d9b75da1270. 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/ARF840700467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7391888c8385bb5892bf7cfd1b6861c6bb28fb624fa0de26da88076561dec0cb. 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/ARF840700468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cd903c7692e6bbdb1507c2761da6066df8d8ae1e6f68479d62258de2a60ffc2. 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/ARF840700469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x647b368a8c563635700eeecca1c5f52e70da3908677704c4b24e52cbcd05537a. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/ARF840700470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd772ca1f7f4faadcdcb9233e553c9b3f18802f19d31de5a08a2da14c9511418b. 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/ARF840700471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87835c1996b6f11f427fbba184c488d964b1ae96e2caf1dce35aa9a4a50f2305. 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/ARF840700472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x351229232c273a6c0874b96a6021f7258b0e4c7379305e37a7f83ffd264ce802. 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/ARF840700473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ae507ba0809b2b8c1f12a98e6cce495c65302489fe85b4f94c8798d61f86d36. 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/ARF840700474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9aa8419736872df8f8976ed73096e37b406b31539dd08cdfdf90b7cbcc9df1c. 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/ARF840700475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d2dabb88eb5f3aad8bfd0395ae9c47b3cdfc568faae63a8d7731a9bcebe2b23. Chain 2 (Bitcoin): anchored in block 960111 (2026-07-29T13:21:01Z), 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/ARF840700476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2d3781da4e6e92b638c5b3e3cdcf478c16eff1facd067be43417eecb7d51819. 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/ARF840700477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13e90d57f8c8b2c1b8c8ad3a6b9634231c5aa940af8ce06f2675d68717af1199. 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/ARF840700478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa45c9287c40808b5a134d5db7741087c21e416e274d12c5c736778dda21b131a. 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/AR6B51500107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4555bada22d6e95d44e2afe0b9c1275cfd86eaec092d9279f00925cb38f82007. 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/AR6B51500108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9447c49094bc6b0d03f6535bc6884e4dc710f8b7a629322fe1b1d0ea15ed5781. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/AR6B51500109.