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 0xdd443742bb2160803a6f9c45d5823c1c81ce86dd214da3c80f0f5b987f4269b5. 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/8373f742-51fc-4253-8b8d-7ab7b83ad536.json and https://artists.proofprofile.net/proofs/artist/8373f742-51fc-4253-8b8d-7ab7b83ad536.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 0x7bb01caabcd46c532fd385b8902d3305e397265f78c3bd51d70bb0d4acb27160. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T03:26:31Z), 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/QZHZ31901833.
Onde Você Foi Humilhado, Deus Vai Exaltar (Playback)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e07df9a402889c37f7af40879091dbb83eeb0c8fda6456f8f9afe34495c7bf1. 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/BREBG2100615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f14f8bf446a421d91526198d4e7ed061cee05b369e499c5c5dbf29c1febc990. Chain 2 (Bitcoin): anchored in block 958526 (2026-07-18T09:09:53Z), 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/BREBG2100616.
Onde Você Foi Humilhado Deus Vai Te Exaltar
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab568a4626e1bc3b5565589c7172597d8dcc31bcd3dbc5daea88c9210fc24c8f. 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/BREBG2200333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb37afac52479d011204316da02fb9e3f30096ebd7d0681632dfdd193c97ba588. Chain 2 (Bitcoin): anchored in block 956397 (2026-07-02T21:02:00Z), 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/BREBG2200334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3943ede14939d0c7a518415860d7117f4c787d29a4b0c929367879b165008214. Chain 2 (Bitcoin): anchored in block 957599 (2026-07-11T19:42:17Z), 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/BREBG2200686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1457220a36ca93d258fd9770c52dbcac5bcb413286f2334e63613bbefb3383c. 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/BREBG2200933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f50411070c3f34e3ac0480aa6c5a77cd1a45c6c3dcfb918ffd88acfb151e155. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/QZW9N2242279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc71b3f58eecad1fedb413cd998aa9e1b5411683f074cc44dab6c7886c56fd747. 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/BREBG2300153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ab9e4bd29b825d0ca307f5880c62731aa12307217255f2b775a52c343c175ea. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/BREBG2300159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4f2d7dc034fb3c07b1de6fdcd1202606b36192bfbb2b0b73c849ea1bde49b19. Chain 2 (Bitcoin): anchored in block 958793 (2026-07-20T01:44:38Z), 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/BREBG2300269.