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 0x2eb5d499c523c925f35aff6ce2b52f11b8036234ad0644a3721e1ffacbbcd62f. 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/27e22686-c084-48a5-b9a9-9ea1e318c07a.json and https://artists.proofprofile.net/proofs/artist/27e22686-c084-48a5-b9a9-9ea1e318c07a.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 0x3e4fe17a77305ddb1b70c1faf4a129c0789eb7e02838dd15cb97d65424679884. 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/QZES92128766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20831c6372fb1d57ea89fa91f2b4f75c85ae798b1760dade98b5db31b17fa603. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T21:08:39Z), 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/QZES92128772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe683be9cb6e3b48fcc90b488cd2e09601a20539405e3e6dc3cbc01bbdce3aa48. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/QZES92128775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7265fd116620b55302911ea36cfb360587d183cc52d58b571d7eae64ca9e83db. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QZES92128767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6db4f6a78b44129ef0d994e1b635569fabaf025fa697f29eb5cc9dd547c1a2dc. Chain 2 (Bitcoin): anchored in block 958371 (2026-07-17T05:45:43Z), 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/QZES92128769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42082893efa6e1bc6e91816baea2fb127efda2b6a0693e987b31dce328fb2400. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QZES92128777.
Métele Candela Al Monte / La Capuchona / Adiós Corazón
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2c1a92fdd6aab480849c02116ee17d4d6385d37fe5d19a55ed0ab9c85b4dfac. Chain 2 (Bitcoin): anchored in block 958371 (2026-07-17T05:45:43Z), 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/QZES92128778.
No Se Puede / El Trompo Sarandengue / El Chulla Quiteño
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6f21e7a65d83f1da1ae10a68117c3ce13652ec311050734f253e5a761c3bc36. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZES92128781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65c93d737efdf4f4eab15f8dde7f101bee5f14d8a6c121ad6eacbd993b370c1e. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T20:38:50Z), 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/QZES92128782.
La Esquina / Ni Pariente Somos / BIllete Verde
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2a5effc7d9c28d12959ed5047f19edc6489839000485400736853e888479cf8. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/QZES92128783.
La Ley Del Monte / El Ausente / El Aventurero
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47352d7a0050c0acb7b2b78fa979f1c8378a48aa56d3efa17e8827307c74ccd6. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/QZES92128784.
Noveno Guaro: El Buque de Mas Potencia, Bala Perdida, Flor de Capomo, Noches Eternas
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93b266f83ca27f6e0aee3c68f2df271120d6faa2f7d300b01cf3763c2072d191. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/QZHN32146635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf15024c842baeb6acd896ff679698a287f1b462e759a77f15e3649042467974d. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/QZHN32146632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0678728bdddaba338ac50398eabfa7b7ca6dc9d13ba280c4258c6399a4fdad7b. 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/QZHN32146633.
Decimo Guaro: Pobre Venadito / Tu Familia / Cruz de Madera / Dos Pasajes
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbc608fb48b15c891f496c0f5ea9f1ef77a6a9b12ee2a794e92be80d6c0e72b7. 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/QZHN32146636.
Expreso 1: Gavilán Pollero / Sabadito Alegre
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb744d682e4cddfb744933147c7196909d7a4fe4ed81413f712547018a1d64b58. 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/QZHN62173921.
Expreso 3: Ojitos Indios / Cabellos Cortos
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3777e45b6eecf635838e87f7b5a3f6bd0c2beabeb068cfe08bee8dd7b30a131f. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/QZHN62173923.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0872cb6937adc87d7726552b5b7973ad2e33e87904d5589f52d4fe6f35e70b0. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/QZHN62173930.
Expreso 11: Serenata Huasteca / Hace Un Año / Juan Charrasqueado
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd18a19243ce1ee344f94c2d002ac442dc405d3d36535ea855fce2fe3ed4b9de6. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:52:48Z), 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/QZHN62173931.
Taxi Popular: El Pavido Navido / El Revoliático / Casachock
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21d25ce904f3f01eddcad362f934b0a50bfaee49e639355caeaa849c225d631e. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/FR2X42355064.
Si Te Pudiera Mentir (Cumbia) [Live Version]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa878e8a4c04f240786b877656436763931c439babe5b694306f612c5eb191d3b. Chain 2 (Bitcoin): anchored in block 957892 (2026-07-13T18:21:16Z), 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/DGA062309107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa69feeac8bc2e441b6be2958f9d4518ed140f68fe2a97269100024e7e400163e. 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/DGA0H2315978.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08b2ee7f651eb821a4fc5a1dc508453e460e2c8fd13c08c92b716fd4952bff5e. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/FR59R2447105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa69feeac8bc2e441b6be2958f9d4518ed140f68fe2a97269100024e7e400163e. 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/DGA0H2315978.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08b2ee7f651eb821a4fc5a1dc508453e460e2c8fd13c08c92b716fd4952bff5e. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/FR59R2447105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e1a832a240c5321c9ad09708715072b91b6f96066a9e05bd73a244ea321923a. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/FR2X42452287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x817e820ac40ef08ea98c2eae8dc54fe17f2a7b94c2b0d09493ce8f8e1f9f040d. 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/TCAFU2133334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ba2a07c85d4defc8ea283c66319becdee0fe59df69ecc730d0125807e39298f. 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/FRX872275753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5193579500e0a48ac439979ea320bfcdaac70d17d22b44718d40f9c24074ec11. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/TCAFR2156592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3eb3887b0fa3750c6b23386ffd3b9c00401be25de9083c11a229dd641fd39c29. 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/TCAGA2286050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x332061b90385b559e0235d6ecb872d6cb4901aafeb6535dad92ed6ce0ddec3d2. 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/FRX202367371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74541592fca542741c9671b17188d1c2bed2104417f4b1ba61ccaa3a5031db36. 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/FRX452324235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e66e834f043fadc63808ca02dc638df7b972e215adde25e3adf9bd28d5f0ecc. 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/FRX452324238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e934965f38b129580f71efa16d3623fabfbe18b76fc1acef0ec96b95495675c. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/FRX452324236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb48bf65b41857cb531f15ee7c5fefb555af7b99f5c171ff9c8399ff8c3d0cf43. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/FRX452447859.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27192df0a198930de6e7766ceffc897ef9b89ce2ed454e2e711f25def5845f92. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/BK4DA2508321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18173cd58ae08398962e4a5ef41c5f5963eeae26367aeab963fd426effa39b90. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/BK4DA2508323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x450bcdf5fcb428d8fba83283ad90d456e3fff20b27f0ac176cde1fbeeae827a5. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/BK4DA2516664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6f3c6bf7a41553632a29d90bd464394af0bdf64258c08d6ed8616ec9e3c3083. Chain 2 (Bitcoin): anchored in block 958800 (2026-07-20T03:10:52Z), 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/BK4DA2551994.