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 0xe4c9a3e9d28e09c30591ab31e998c20710ecb21c61cc982bd49a95a2851c2af0. Chain 2 (Bitcoin): anchored in block 953827 (2026-06-15T19:59:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e13ee427-24f3-4fb7-bfcb-8e9b8ea37f05.json and https://artists.proofprofile.net/proofs/artist/e13ee427-24f3-4fb7-bfcb-8e9b8ea37f05.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 0x16f9f92b652cc2be51f179edd9aa1f78d863f9b36f16fdda2e4c37f6d3c48e60. Chain 2 (Bitcoin): anchored in block 958714 (2026-07-19T09:51:44Z), 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/QZFZ32302596.
El Silencio De Los Dioses (Máquinas De Acero Vol.2)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06a1c1d5255a2e902413f81467041dc681e1ac03447ef50f895d30a3347b87f5. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZFZ32346585.
Quédate (En Tu Puta Casa) [La Suite Records Remix Demo Version]
Quédate (En Tu Puta Casa) - La Suite Records Remix Demo Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x841551883fe95697c083569bc25f27eaaca278bcd086cffa2dc88e17ce162857. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T16:58:47Z), 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/QZDA42338682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48af1ebcedddcd4b72b12bc371e509f89ab2053efa121a4c6bfa3edbf4c3c59a. Chain 2 (Bitcoin): anchored in block 958775 (2026-07-19T20:13:58Z), 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/QZFZ42314980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc833f3b548faad71f6b2b1f3223cf54a84b6db5cea3fcf564c5741b2957337be. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/QZDA42304324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15ef48261ca9d762c92408bb7092613591ff7cc7c88cedbd9d2afdaef1a58b3b. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T19:27:18Z), 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/QZDA42304327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf337df1da7add64c3c980eb4a7c624241a140540ebea0bbcce979a57f6326bd7. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/QZFZ32343945.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecf02aaa85d58d3a8495fdb68af9bd76149603a8dc3d5f70bf8eabcf5e1c358f. Chain 2 (Bitcoin): anchored in block 958703 (2026-07-19T08:36:12Z), 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/QZFZ72402988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2c236f82c54dd8d90658c6f94b7d5f2a67f058f6ce2b3ebd32df285a4d61ce8. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T20:03:27Z), 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/QZFZ42435500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c81c875e6aac32e6fec104f6e855da3f547beb9e2de67132b33a85245fd0c29. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/QZWFN2433448.