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 0x5aa5cc3a0c9fe2fae58090a0784e3c8ae1ea008484e41825bfdfda1b7e8a4b26. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6209e491-25b8-4d82-8568-5f162416d6c5.json and https://artists.proofprofile.net/proofs/artist/6209e491-25b8-4d82-8568-5f162416d6c5.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 0x24f8a5ec099509e6cb22b8e8f3abd8b6f5592c496c4b4be459013139ae527d16. 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/QM6MZ1924207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x601f867363cd10d03e0576bf6ffcac87bbd4bfdd6e20b9bedd01ac19dda7e2c0. 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/TCADS1836120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ad42409d95908161d5855dc035d2ee69ee516d482254dd61ac8b255d3d38639. 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/QM6MZ1981287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf475b46412a93c71f0a8d23009cc390ead358b7a7a4c58092665bf3ba69ca42e. 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/TCACT1692488.
Quiero Conocer a Jesús (Acoustic + Beatbox)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf762c9f888e6bf6b5d8fda808fa4383511a97b2732c1bab23a6f874c9932afd9. 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/TCADH1740675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc75394b1fdb405f1ea647e18c2bc42a05901d962566da816567d1f131db5672b. 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/QM6MZ1996079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24f8a5ec099509e6cb22b8e8f3abd8b6f5592c496c4b4be459013139ae527d16. 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/QM6MZ1924207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x601f867363cd10d03e0576bf6ffcac87bbd4bfdd6e20b9bedd01ac19dda7e2c0. 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/TCADS1836120.
Quiero Conocer a Jesús (Acústico) [feat. Thrazo]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf762c9f888e6bf6b5d8fda808fa4383511a97b2732c1bab23a6f874c9932afd9. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/TCADH1740675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf475b46412a93c71f0a8d23009cc390ead358b7a7a4c58092665bf3ba69ca42e. 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/TCACT1692488.