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 0x6e537bb7cc1e573c9134d9ff20dbf6088c7213b711053a7a2f70d014e95eb0b6. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c762708f-3315-4e3f-bf6f-ca1279b6d31c.json and https://artists.proofprofile.net/proofs/artist/c762708f-3315-4e3f-bf6f-ca1279b6d31c.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 0x8362991b40cfa0b77762cdd47341b9f0239fab8a070a1afa492c35ff80eece71. 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/BXLVT2400007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6609ad2131da38a1a64738c68736a267a185798796f18ac64cda9bcb51f0fc1d. 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/BXLVT2300113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda2389b4b1a802922685c855a114936f5823f6ec04a11555dd0d3d8d8cbf1224. 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/BXLVT2300094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8362991b40cfa0b77762cdd47341b9f0239fab8a070a1afa492c35ff80eece71. 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/BXLVT2400007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6bfcb0c12ed77cdb38565ff4dbfe2caa51af3961ae27675fc407868325617dc. 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/BXLVT2300099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5ce01b8566bcb59a26b3d6f323a63a7540a13ad481b7ccf81e162e2f552221b. 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/BXLVT2300111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3911607d8c33a5ed793ac77d6643be2b18e04b0628202ce3811968f53b783e6. Chain 2 (Bitcoin): anchored in block 957013 (2026-07-07T08:31:11Z), 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/BXLVT2300097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x483e1d0428c965686a32ab0dfcdfcfa3d6e7df9b27f03d92d64d4fdfbb300e2c. 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/BXLVT2300105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9976c03ad19d821e777337776aecc6d6d44383c69c52745e75401da4e526e72e. 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/BXLVT2300114.
Parece Castigo / Amanhã Sei Lá / Voa Beija-flor - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf73ca8006bbff6382b3931b4fced1759cb689b93016ccfcb68496ec30c95e2c7. 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/BXLVT2300095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9701735e3d76fdd90832713828111fff7e1859b18223ef1384f9ff05e020ef01. 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/BXLVT2400009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5ad6fb135f39eaee57c988ac39a1b15eb196b5ac75e49924a9eda12e8fd6a93. 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/BXLVT2300098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4517e98c9d897e3ad84b6704afe8c11c317ed8e4499953e0fa82bfeed4dc6049. 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/BXLVT2300120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6609ad2131da38a1a64738c68736a267a185798796f18ac64cda9bcb51f0fc1d. 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/BXLVT2300113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x134a72e85acc71c94ace234e11a2f40e4eaad26790c56e392320e677de8b5d1e. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/BXLVT2300119.