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 0xdea6524a5ef69c19872151bd697e338bdd1a8de04360c7b68961dce29280777b. 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/bd19f5d1-8d8d-43db-b8d7-27c5760ccad4.json and https://artists.proofprofile.net/proofs/artist/bd19f5d1-8d8d-43db-b8d7-27c5760ccad4.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 0x1bf24634a9b55cc642d58e0bfbfa5b51f97a25a146b6c2dab402337962eb90d8. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/ARG992045035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc711a6da3b1977851a3c25c771923565c1d2ee6ace680ac044b3cc6c5d044220. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/ARG992045036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x422f589429cf72778bcd9100a75c419fc0117c2c82baef321e1e8d07f15a106b. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T10:59:15Z), 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/ARG992045040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x011085fd714c03b1778bed06c7ad45f5bab25c641aa63359bb985eb5c3d5803a. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/ARG992045043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ac82bbae9bd5860089644f52320db240911e49d7e1f27b5074e2eda7047a76d. Chain 2 (Bitcoin): anchored in block 958104 (2026-07-15T05:34:05Z), 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/ARG992045050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x378ac233adacc09db14d69a17afeb8b13004239903b7aea34dc47c65a9f06ff4. Chain 2 (Bitcoin): anchored in block 958117 (2026-07-15T07:36:28Z), 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/ARG992045053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x274f21c21a611a17d455c65b204afc05902bf9377583427b5c88d0e330a919d0. 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/ARG992045057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54ec2070ddffd2d83f5a63bfd6d9a99f7c817a3ad49894b18205a3a9071ca5e8. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T12:58:09Z), 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/ARG992045058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x032f2c5ec2f6c62b6ffe675a2734bf9e0101a29871dd5b50ecd3eefd907c2060. 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/ARG601400509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce63af21f8b8f8f72809c43fe71249ce03612cc1d1fb3691ceb6da08040d0c14. Chain 2 (Bitcoin): anchored in block 957772 (2026-07-12T23:31:17Z), 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/ARG601400513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce63af21f8b8f8f72809c43fe71249ce03612cc1d1fb3691ceb6da08040d0c14. Chain 2 (Bitcoin): anchored in block 958558 (2026-07-18T13:44:16Z), 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/ARG601400513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97788d8be200e15151c9f4bde6e92ff6598a7955ced103d3eefa1b01f17925e2. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T19:15:54Z), 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/GBSMU5074673.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc761fd19d6c20ae69e1165bb2c07a84bc3a07bd07d9f5efcd4657531e8af8159. Chain 2 (Bitcoin): anchored in block 958510 (2026-07-18T06:38:22Z), 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/ARG601400501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda172900965814037734975e053ca950b7455df287413aea828313b545fb9299. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/GBSMU5074676.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x032f2c5ec2f6c62b6ffe675a2734bf9e0101a29871dd5b50ecd3eefd907c2060. 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/ARG601400509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x749a73453bb4c21cecfdb2d98dce7e435f5c8bca9b1f00bd4804f3b19e197c76. Chain 2 (Bitcoin): anchored in block 958617 (2026-07-18T22:07:13Z), 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/GX8KD2338914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbc3259ad8f0489348a81216eeaf2aa15114da52eb830ff5b4781c7e8ac2beda. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/GX8KD2306668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x948020d491ccd7d75887a204a817159cccf35aa19772204502ef4d59bbfbb2ee. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/PYC842401973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd54c9107449265ed154744c78e014633a1380cc8cc7e475192fcf026f1396fee. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/PYC842401974.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a154f75c5cf18b273c850cfb33ad12467243adadab1b512f7bfa68e07c7dfec. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T16:17:58Z), 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/PYC842401975.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8713d7f1527af85d07ed523a12884c61f3fde2a95ad9d388dc44bddf767c37f4. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/PYC842401981.
ESCUCHA / Zapada EN VIVO en UN POCO DE RUIDO
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4cb9fc3b4dce33bef56418c330c6de3e65b3fbb025aba9c753ad1f9191f7a1d. 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/AR5UH2401706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2d390713b8afc3f808e89174007dbd5dea1a857b667567cce1d421e57a1f379. 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/AR5UH2401707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26bdd467ec14c9d8630b9ba40340b5beaed34b99419cc7fa00662c586d401318. 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/AR5UH2401708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaebdde1c752de92133145f497bb712a9a12092653478a4907c7145b31e32693. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/AR5UH2401709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cc209b2bf47f6018b28d59d83d57665676d486e3689d105281aa38aa8fce76f. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/AR5UH2401710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff1fbd2abea2a704c6d764588631689d3be43321c702b3afb1ae55d990246a88. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/AR5UH2401711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedc1c5a47d63a22058588bed459e0ef69d166fae619ff18a5bb955792fa2da6b. 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/AR5UH2401712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd836742430a36a84f62459b832b0bb81cdf9f58d7783949889c7b503d911745c. 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/AR5UH2401713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x910d8d3e315487c4b2b9b4f49b670f4c1c218b791ca64a3a32d0b617a914b607. 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/AR5UH2401714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67ca80589787cf63c6295c13aa88db679a9f8eda6fb1ef0d13c150bee9a2eac9. 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/AR5UH2401715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ec765c26ff7fcce0c959b449a8de8980c7be5b326afa7ebe26c3016336187a4. 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/AR5UH2401716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa17903bf3007ec64f7e1b036ef877dbbba5b34f7600083c8157471a73a10ae61. 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/AR5UH2401717.