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 0x332c0919c0ec8ea383a6f55d28ff83cbd04edd75082e2fbc4a032fc8394e312d. 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/67ad77e0-6100-435e-9918-1a43f45b5d75.json and https://artists.proofprofile.net/proofs/artist/67ad77e0-6100-435e-9918-1a43f45b5d75.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 0x112be505035ea57744a706e3d8ab14681e415e0eb72804d866b16d6f8d898143. 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/TCAJH2523851.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x112f97ac14d18f128272fd5da2b1b7bce107a4f56f8fdbcd4d5a63810142057f. 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/TCAJH2523852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa94abeac9036d10090bf2a52323dcdff8811a5736bf98d88b886265da4866153. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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/TCAJH2523853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5754484c32e667473b918d6e51071740dced02449ca83ec2708e5d33af9e4d00. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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/TCAJH2523857.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52574a71dc85703c2a0cc59179582fbedbc02e617b82aa98224c037167cc0006. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/TCAJH2523858.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b05480d0f4c72b00d14cc9c697ff3672d5dae67f948fd9e63a32ca15043182b. 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/TCAJH2523860.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39d4303a880156547d710cb848d210b6e4f8a6f26221367948f8c4bcdbe7addb. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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/TCAJH2523861.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa951d1d2dfb6e0ade6103e5ce3f27bb09d4a316efbe0fb7dd4870a9aee48dfab. 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/TCAJH2523864.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea53aed13ec6f5c33a9e1aca0d05183a8fe3ca423910a32a71739607d08988e5. Chain 2 (Bitcoin): anchored in block 957965 (2026-07-14T07:07:52Z), 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/TCAJH2523867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebd3c59115e4f4026ba74687bac49cba0f9961645937ccb68b0d3cccd14f1ffe. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/TCAJH2523868.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1b1bdf8e1c11d8ed67a068abf3f367776785e3daa8d83fe15ae0ce01723399a. 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/TCAJH2523872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b86b6a14a571b3409a0265930d5ac02451bc23baba1c6d88349bd6a92f5039f. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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/TCAJH2523874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x164e2ee7069679515370841e2dca4f4c70da32a6de2d740c75c741d7add01eb7. 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/TCAJH2523876.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bcb44c1c788f0098d844aac77b0b8a8827a344626fb59f7bfbe417095eee390. 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/TCAJH2523877.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7efb7bcd7f226d16a29069b75ac965a590becc258dd58e8cb57984511e815ad2. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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/TCAJH2523881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde5808b5ce67d48bff45c36639eb2f2c08639e458f2f354432e04d0e37784490. 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/MX3601100011.
Intenta Rimar - Vol. II (feat. Mery Dee)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3a661467b08741b445b542b0f6185c46e030d23c7fe7b2fa0c7370bfc509039. 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/MXF010400277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dd9db3c0a81dc4fb4a0d485e3b056fc663ef08d854d4f282a94b6f1cd7514fb. 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/MXF010600002.
Me Atizo Macizo Tour - En Vivo Desde la Ciudad de México
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x680ee7931eacba4db491b15ad645b2727b73ae3720629aabb11583ff642a738e. 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/MXF011200642.