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 0x12ddac5225b8b558271f69cf64f1a97c530f1c8be7f5a38f8257c3633e7c38a5. 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/54fe62d9-fdbb-4e31-bc66-910454486503.json and https://artists.proofprofile.net/proofs/artist/54fe62d9-fdbb-4e31-bc66-910454486503.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 0xff4fecd050d94b0cfed79ed7c36f223a6bd0f6e36f91dc7c548c176c4ea724da. 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/DEXO52451698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf06482d44d7d54dee407cd70affbb1585ffd97e55c7fc08b61bd27bb2b052746. 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/DEXO52451700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47b1cc33e11b692ba2668f6b2767d960b415ad941733206371269468110db5c7. 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/DEXO52451703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60b8e0a1c656739b72d8f861d86e029f62771fd6f5fd8ed96ea53aa60a0f2ada. 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/DEXO52451706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0239aa1826d862efdeeba0c2e711db4fe4242df93ec69eadfa18646ab508fce. 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/DEXO52451708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b365d0e1c912ea1be9280cfa79c357a05cad37cce44da1a5c347f4c23d54c4d. 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/DEXO52451713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd72277d64063d98ca905fbc5220e07b87708bde64c302cd733aed30d1a0fd73d. 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/DEXO52451716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2640c4d55ac65d59f984e5f7e455be62bce2962ae0f92628f5707dffa825c74c. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/DEXO52451717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1acd9a17e00c05a619dc5c2bd6e9e2241df419dce8c6659df59cfdf160fa9b8. 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/DEXO52451722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ceb593261cf38c74327effa673814025639a7e6f29ccc9b5210824d9751e8a4. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/DEXO52451723.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a5806b08736488106fc19af18159bc127163aa205c87afcb7ea0ba986d520e3. 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/DEXO52451731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2df7a5f017d9ee0f6af1ddf33dc50abbe331033438a479e3fd44a1f705b990b0. 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/DEXO52451825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa912d359889bb503ab9b97576f81631f2b219bf1c27251f65361773986f133ce. 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/DEXO52451847.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6c05177650e14baccbbfcd72fbabbca8696014ed96d781ff253c9190fa90713. 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/DEXO52451854.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39c69cdc7820f21d1c1d093e77754da879d9e48b591e3960fbcc92b8ef03997b. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/DEXO52451866.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d2f49be2581a1fec2e76fb9465213e60c8ae14cfb5a68d2cccec6449fef6c93. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T05:43:35Z), 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/DEXO52451868.
Presentando a Mantovani y Su Gran Orquesta
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcea258a0d3fbaf47202acc345fa7a0a4d4dd5ea9361f68690be23639995eb767. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/DEVU52364807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa5041229b6d97a701c982b98b711918cb736595a29e030767811a53a43fd5a4. 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/DEVU52364813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffdcd315f2683c3a539840c4e2fafc540953019a89383d5182b0595fa1599ee5. Chain 2 (Bitcoin): anchored in block 958918 (2026-07-20T20:10:46Z), 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/DEVU52364820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabd7e8ac1ad27b00739667da720db08f69e469822bd570dedfda4d0801f80085. 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/QMFME1311705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc55bff19ac11a25351af6e917acd9159bf0cf9e91bbd5ffc5646fbbeb9979247. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/QMFME1311706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7f505d8e95a82dd8bfff9d56373904d8d35ae39e51eadf19b560d11ec325378. 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/QMFME1311707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0284b339c8ec2fd154fe8dee0ac6a612ea62ab24b7db5156db5d224160bfbc8. 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/QMFME1311708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc517b612f59d66663c975b502e13f7c5a0fd6d4b07f6afdfe43e31ca0f105faa. Chain 2 (Bitcoin): anchored in block 958473 (2026-07-18T00:52:36Z), 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/QMFME1311710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14a143d36cfdf42cbf7924fcd6214e271c05247cbb86f5ba634d59e40883be20. 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/QMFME1311711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9a857ceac68015d246a6f3503e4dfb05dd17714b28750890b592c745be9099c. 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/QMFME1311714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca338ce248f0632d26887c76641a2d22313b264b35aa30f7d2d0ff0a5023d125. Chain 2 (Bitcoin): anchored in block 958585 (2026-07-18T17:05:16Z), 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/QMFME1311717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07899c9572513bedcb7df0a9a48cb850ff378c1187cfa3c0190878fadc203d62. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/QMFME1311722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d970b29acd32256b7a5312443ce5ef5c986cd5f90d73e34a90c6002d6109e8d. Chain 2 (Bitcoin): anchored in block 957546 (2026-07-11T09:35:53Z), 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/QMFME1311726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a367a96eb3e89133e1c8a6178f742990eb90b095894a8ba7c9da9f0919fda88. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-16T00:10:38Z), 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/QMFME1311733.