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 0xe7a9e9fb827e569a08fbaa69d0cff1e0ea773a92048915954162dc5b85f1f5c4. 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/91e777ab-67c1-4562-8692-18da32a92525.json and https://artists.proofprofile.net/proofs/artist/91e777ab-67c1-4562-8692-18da32a92525.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 0x91243ca105f15a2babe008bb5d71f9da48b44fb92b74d9b1bdf437b525ae5d79. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/ARF061200168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb65cb9cc21134b974d95d2eba8c00b631d0dab87345ebc1f394608515dea2b43. 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/ARF061200169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59d5ea3abfc25cb88ddfb734109711b68e11415fadc6aa055cef5ae1f32d6d3d. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/ARF061200171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bbf4d3078db33493f5fa7e06cd84f9151f4bf24755f9ba2e329598b46e3655a. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/ARF061200172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19f8be36f66dfafdf06bb010c5ef08877745a78c43412073f043b26c3491c550. 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/ARF061200174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75ff9fdc5b0d6a58bd6214b5c7657cea9ba1c55d26a3596e12610eb32187c2de. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/ARF061200175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc5e091f2667835e89a3bf143c78d00237e9b8c6e5e012ea3b135974a44bdf31. Chain 2 (Bitcoin): anchored in block 958654 (2026-07-19T03:55:30Z), 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/ARF061200176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x363ec31214e41ee292d99defaac0ce9958b8fd9ceabfec6012095b0081b67e7c. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/ESA011911487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b56d8edec3476610035b2514212a14489f064dca54075101b98ea6ee716dece. Chain 2 (Bitcoin): anchored in block 958197 (2026-07-15T23:34:38Z), 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/ESA011911488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe02ae7b76437a150e93e4a4fc4d5cb68a384f794352fa5b52ffa728c47eabda5. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/ESA011911489.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a2dbd14b16de9670fff5b2be207f76029f87dbfa68a1c948b38902cc88d9a02. Chain 2 (Bitcoin): anchored in block 959002 (2026-07-21T14:42:21Z), 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/ESA011911492.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57b10eeec27b93eb0481eed6d55e4ad417d84cbf860ff198e556b36260094bb7. 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/ESA011911494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c3a2984d3238d4dac52d2ca0bb4c568f1fe6ee95d506ec6fd430ab21efc23e5. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/ARF061500732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa3c7bdd092f5dde4bf97858f9bdaff6327c3029546dd71b127d5be4f7759e92. Chain 2 (Bitcoin): anchored in block 957868 (2026-07-13T14:56:55Z), 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/ARF061101070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x689f0da5c0be7f791b26e48866984b062bbc7f55dc1fcb507103479012deb1c3. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/ARF061101075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33bd7e0bc279f3534c237a00153f312261a3dbf9ae5b4a1d3e1af5fede00da90. 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/ARF061101076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd32df0cc512b4283e3926409f64b1d9653ce2ebe353dc2ff85fd39738b5a23e6. Chain 2 (Bitcoin): anchored in block 958122 (2026-07-15T08:02:29Z), 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/ARF060501003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe97a2dbc08cff814986fe58796b44efe48d924fcfd412bdd210e48c00b0f77e5. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QMBZ92026826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5b5f08ce00a1689151cedeb64310bf35f06a5a61b7b87918edf25dab341e158. Chain 2 (Bitcoin): anchored in block 958404 (2026-07-17T11:34:58Z), 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/QMBZ92026830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaecd2ce6bdbcbab6aa17b2e9a0e843df855f204c51ff249674c95c49dc4c8e7c. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T01:58:05Z), 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/QMBZ92026831.
En Vivo En La Gran Fonda de Radio Azúcar
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b9b742a9711a7dc57c03dec5a1571ce888cbe719fca4f0d5c65fabf71e22da0. Chain 2 (Bitcoin): anchored in block 958870 (2026-07-20T14:05:00Z), 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/QM3DF2145578.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1dfe48d2ea46efd4e6293e4c0b489712514140b69551b6d34e256ee1093928e. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QM7282364990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc6226b21a2117278572c04818b9324b052b7ef6c5027b5cb6d7119285f8fa5f. 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/ARG991023758.
LA CUMBIA / Zapada EN VIVO en UN POCO DE RUIDO!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde8167d145f99c9d5b2523751eae344dc8315c699dc52e1576a5bdbd5f65a859. 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/AR5UH2401582.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45088fce7df20b7b59a2c9c7f37d193dd1bbe0c76b654c014ae8b3102a39463e. 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/AR5UH2401583.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x351d36b069f274b67669ae51469b5083b1c28c1182f1e38a56b418578aab7261. 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/AR5UH2401584.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e8d582076efaaca651c771a7808bba6f3f8260300183ae5c7c0fab1db3111ae. 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/AR5UH2401585.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57e543a541672fcd3c267726852598a09c66841eb454436ba94b309809870fb7. 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/AR5UH2401586.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bac532fd5838f4c085e8b32b5720edad3a9c387bb5a1474657bc833019b1d8d. 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/AR5UH2401587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6d0bdfdc0be12a660ba6bea0409c55179e8fb8beb984c99007c99510ce33988. 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/AR5UH2401588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb361168707392d18571003632437fd8fc52e38bd0bfed517a1fee86ad36fcd81. 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/AR5UH2401589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8e6ea679fd85cbb93c21b5e0950dcbfc607ad1ddbbf3712b10e86ff2b09ecf5. 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/AR5UH2401590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c53d1c16eef0a1e9cd065001c82ad813889043d7dfecd99caafede791b3567e. 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/AR5UH2401591.
Superbailables de Siempre (Mixed by DJ Red)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b9b8a20dfb259483cbfa60361872b1fe3e11b98b5f49a54699a829b78115d49. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/ARF060902037.
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