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 0xa1480959518fa9cf8fc30b518a36255cbb31904f52d0e2c0fbc0ba94677ab16b. 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/7ee4563a-3494-4b22-9de8-0087eee2563e.json and https://artists.proofprofile.net/proofs/artist/7ee4563a-3494-4b22-9de8-0087eee2563e.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 0xc0a7b557b0a2bbbbdb1902dca98195b330571bcb7d241b109d54ecf11274c8b3. Chain 2 (Bitcoin): anchored in block 958582 (2026-07-18T16:47:25Z), 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/QZNJV2019335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadb58495761be64fb73bcebe813d1230a6deabd4022d1121591a90e8019309d5. 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/BRCGL1100083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf72cfe75f8459f4f4601a899d767a9de2dc3b306dce20890a317d459037dfa39. Chain 2 (Bitcoin): anchored in block 958860 (2026-07-20T09:58:28Z), 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/BRCGL0700002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f27170bd8e30f18171f627d367ca6fef1eae3538b5259a2ae2d2969e699a844. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T03:59:41Z), 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/BRCGL0700011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c89bede97ac6c8ba38c43157e6b6e81b27acb58da3fa48514109e662d856ec2. 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/BRCGL0900073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e83ea62bdc14b7264e7c1a82747540a8c4a2751ecd564846ef0461c75a993b7. 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/BRCGL0900078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadb6e6d6b83b81c6956d9218a979d6ae6e45b632abd3ea0aafc594c797a80f00. 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/BRCGL0900079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20079b16ba8c3767daa1f9c36274fc50284cf76528385a9c7610c0c0a9864561. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/BRCGL0900080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc46dfa1926c7b7c16d4ca53beec84d3f93be35f510a9fd3ee0b7cf3833bd2a6a. Chain 2 (Bitcoin): anchored in block 958432 (2026-07-17T15:43:17Z), 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/BRCGL0900081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63d4b9bbdbd0fb135cf7e117e41c29e187f0867eb6ea84eb0d5067ea23b07bd0. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/BRCGL0900082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85d052f95fa088a0428cfc2b011a43e5c8e26dcb93a7077630794986e6140d8f. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T04:30:31Z), 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/BRCGL0900084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa8184cd7f85953ae9aa9fb887f999564109a7ffab9d7fbbdf207acb053d7f0f. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/BRCGL1400040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd7727780e87953edb09cd9130b341c5a4e9c38ffda06f17906bac6d2040471a. 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/BRCGL1400041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51c654d3b38086cfc86196ace0945b4a082597692aa5d8da8947d8043e045fb2. Chain 2 (Bitcoin): anchored in block 958432 (2026-07-17T15:43:17Z), 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/BRCGL1400043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedbf4a9aea03991729f793b9939a7e6552c666c0b6260f79606579c74374c053. 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/BRCGL1400047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x217c6569fa4f16915f3722d32249a66cc5d3fd67f34f3a408679c2e2e0467947. 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/QZNJX2084678.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb68ce6aa68bac99636db2799225be6e0a7151185947a800a1b43bdd3db7340e8. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/BRNHC0301322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e93cfb9889162438a2d6da5d6a9f9142ac75d6733fde8f8ba17b6ca77323f79. Chain 2 (Bitcoin): anchored in block 959034 (2026-07-21T16:34:25Z), 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/BRNHC0301328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c791eb520f5e42657553481e3d706df3009e21708393ffbfcae8acc8edfc344. 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/BRCGL2300022.
Basta a Ti Clamar (feat. Danielle Cristina)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x360222635c6b4058185d67502b214d9744a311d98f7fbca6ce6d94c674577f8f. 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/BR4VT1300034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed63b7e08194610a72b2ca3bb9659c1fd04183171f917d8c3a93251e844ebd4a. 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/BRSME2100756.