thumb|right|Pre-2012 Edy logo Edy, provided by Rakuten, Inc. in Japan is a prepaid rechargeable contactless smart card. While the name derives from euro, dollar, and yen, it works with yen only. His
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 0x64fe0d1b8292afb43222e7a3e04213eda1c6d12b6aec8012f396c2c00c3b8169. 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/458fe824-b5ac-453e-84fa-3d7743be10da.json and https://artists.proofprofile.net/proofs/artist/458fe824-b5ac-453e-84fa-3d7743be10da.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 0x046c0e26a6db7537d0ae33e5d0c4979cc83fe2445cdcddea814b81a25336c8b0. 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/ATAJ12100610.
Fatalna x Oci Zelene x Omadjijala (Medley)
Fatalna x Oci Zelene x Omadjijala - Medley
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb346e3bb4ad98e034498661b4dbd18336c8bb3dd20055584208aecbc486f913. 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/RSA222307973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cd69dad7760b91b95eded70f6f1b1870b6689413015c222969fe2b54acbc7c6. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T00:42:56Z), 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/RSA222308903.