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 0x4ec9ae1da08d477ca242ae26b4d486773f52338ef792375a44fb0b2b38ec17bf. Chain 2 (Bitcoin): anchored in block 953657 (2026-06-14T16:43:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4d3db2dc-0991-431a-90a5-ccaa8fcbdca8.json and https://artists.proofprofile.net/proofs/artist/4d3db2dc-0991-431a-90a5-ccaa8fcbdca8.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 0x086dc9dc840bb8774221d9bcda15dad64d09f2b09983e74f47223a3d16e43cec. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/QZW9K2200811.
Oscilaciones [Golpe & Guataca], Cap. 2 (Sesión Banda)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01fb4fbe043eb857f368e0a99481cf2d7ec0d59caab8c591f6c17a744ac1fd3b. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZNJX2347328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x086dc9dc840bb8774221d9bcda15dad64d09f2b09983e74f47223a3d16e43cec. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZW9K2200811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa6a1ecb7fd2675d6cca85b2886a022895f92e5f0858febc9561477d9f68b561. 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/QZNJX2347330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x555ea69eabcde126219d2f270a134a84da31d849812bdfb94e0af189fafc601c. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/QZW9M2207633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32822fafcabc5eda1be5c141f78383de6916731e74578e3d413a14b33246145e. 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/QZNJX2347332.
Oscilaciones [99.09.19], Cap. 3 (Sesión Banda) [Live]
Oscilaciones [99.09.19], Cap. 3 (Sesión Banda) - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99201fb1ebbd89a337699c031689f2c1df0fd605f4e2d9670c37a7543527a0e9. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/US7VG2425450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26ce7411f6614eb191b08b2793af5499d72d329cc4799827ab80b41d633c025e. 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/QZNJV2409680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc870ec58ca75af89b1e6a23681d378f750b2dbb27517de683a6891a13dd23633. 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/QZNJV2409679.
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