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 0x3c523138924c087cd5e709fcf6a6f94f1895530e5d7c4f638227c10e9145725a. 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/13c78a3d-e0c2-46c1-b83e-57d6cf0c584e.json and https://artists.proofprofile.net/proofs/artist/13c78a3d-e0c2-46c1-b83e-57d6cf0c584e.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 0x7500aaa74c28adf086ee6bd8f341ff73605d97f3c2b066ec841b3c47f645002c. 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/BX4IU2316192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x278b9cbd939dd6ce8e0b026ba35d6c873ea947cec8fb64ee9cb193284d415b0e. 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/BX4IU2316190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88bda3a546199c8b9619c1ffaa22eaf562a3d052d8c1d3a7704cb5c9484d2714. 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/BX4IU2315762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c6e1b5fd5d851ff30214c3f2fcfdcf15bffee1666be46d9e2c49dec32ccb6be. 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/BX4IU2300223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ba50169b85b09b8cf5ff2a62b2d7a974bc16ac8b4156bf770212b68251636ea. 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/BX4IU2300235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd59df15d2bd609931873e72ee303ee812649bf4a470c73cfab0e7d781cc7b890. 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/BRTRB2200794.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50bb7560b341acf12438e5ad7abf99529856fe0577df4ca68514e331bdab2d9c. 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/QM3DF2186094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdac27fb9b8dd5ab054ff6d66009c45d4a11e926d4f1d6e121796996dddd91de8. 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/QM3DF2135101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecbfe72f55f52234dcec7bcc8703f131da171f22f59848b845c4412607775c4f. 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/QM3DF2131674.
MEGA FUNK REBOLO SIM ESP. AMIGOS DO BINGA
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13f38cfc46e8eb3207bb14ab8ab41b2c4d66800eeff2c7e464df6dca1c5830f5. 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/QM3DF2100285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf94e0f33098681f5ec756e5862e072bdd0aa2b3d5ba70a69021c87aed714fcdb. 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/QZES92513265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae19f1def4c1121304e92535f194954ff2996e803067bf9e3b35ffe4226b1e68. 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/QZFYZ2591325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf25b1e3d5a25b783a3e9b4e244e915e188553e1fca75a8cfb30d81bf45471c58. 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/QZFZ32559558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fe00d6444b45c15824b612b31a88d3506d4aa961dd63987e702c6d00172f7e8. 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/QZFYZ2583963.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55a99614d5ead117b21a0286bb334505e75a93aa674b356b4e0e97fa7c36f780. 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/QT3EX2461302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9d849713ec5d764b0cbae5381bd6423afcb3a7bc2d14a795717856f1708d846. 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/QZZ7Q2410032.