Zama or Zamá may refer to: Places Zama City, Alberta, Canada Zama Lake, Alberta, Canada Zama, Kanagawa, Japan Camp Zama, a United States Army base in Kanagawa, Japan Tulum or Zamá, Mexico Zama (Tunis
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 0x369408b6a961a9d03d08ea4e172138517eaa9da691f06dcc79de509c3cad2733. Chain 2 (Bitcoin): anchored in block 954587 (2026-06-20T19:10:41Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bcd203e1-ead0-42f8-9d77-23879a772a00.json and https://artists.proofprofile.net/proofs/artist/bcd203e1-ead0-42f8-9d77-23879a772a00.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 0xa007727aa790ae6f37381894e62768881b5ef8306312995eef585972630e2e62. 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/QZFZ31915736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f099cb2aa4fdfd015c5de358e8a40d546ab85d3566864301c6be08d5ccdad7a. Chain 2 (Bitcoin): anchored in block 959088 (2026-07-22T04:31:30Z), 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/ITGDN2100039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe827adde385e3724bf4fb2ea6a140b09aed90cfb0451a1666a0b01c597f9be89. Chain 2 (Bitcoin): anchored in block 958596 (2026-07-18T18:42:38Z), 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/NLRD52425249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb5f005a3ebc02d8e994ed18c41f1d1fa5baac1ee476f52e913c508b83a6501e. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T07:01:59Z), 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/NLRD52425248.