Mordecai (;"Mordecai". Random House Webster's Unabridged Dictionary. also Mordechai; , IPA: ) is one of the main personalities in the Book of Esther in the Hebrew Bible. He is the cousin and guardian
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 0x5b884861e07c805e42ccc3c38b897adb84c957ab4eae60805cfecf6281e34929. 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/b0b720c5-26e9-4dc0-a5c5-665b56b4adfc.json and https://artists.proofprofile.net/proofs/artist/b0b720c5-26e9-4dc0-a5c5-665b56b4adfc.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 0xeacbf7c57b8633d6a825bed57b9aa85c5412c8848828e20ed22fd81f5f2bc7d0. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/ZBO4F2400030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x774870ab8b992cb790eee884f10f4b36a986e6d6602592a9e4ebf971df50a5c9. 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/QZWDW2430893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc245534a8bff45fc1240eec552fc7f39891576b8f8fef09bb1918b0e775b7ad5. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZWDW2430894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01c6c565b66d3b666f948e854977883d8bcd5be4625a4aec3aa51171b4b243f4. 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/QZWDW2430895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28d414739f223f0c6b6e4fc9ef9f22bb726d3ac5172b4c001d41c5196de86ea6. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZWDW2430896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8508761eda47e138cd6da56a7d19d74a4f8cf66eaf93affe872f04bf591b8622. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZWDW2430897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ee13232f13548ce0f90376e9170e9772d7ad9bb41bb3f368a26e0174ccdc00b. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QZWDW2430898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2631918c212a5695dba1f9794005cc958d4e57e1dbacc866d9b840c23524dbb. 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/QZWDW2430899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd521a430cdc0a9399b41085d918a7e093819beb24562e013543bbeea859a2b00. 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/QZWDW2430900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb19e5e9ace3a70744646fa6788f137395e30db7ef993790266f49c0479dee2af. 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/QZWDW2430901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f2d7a5c2e1981c75d60197f6b3d7e918c234d96907f89214778e4c783cc38f0. 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/QZWDW2430902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5248a6fab42b659dc6b23651fc3979066882a8917e43bc7d78606273a181c902. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZWDW2430903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34b1758585fa49d5c76f5c52fd0ad5fda70968c916f9bb94f7fa17f66054c149. 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/QZWDW2430904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefc2f69981767fc1f46f799c573c6f78d823871e7f073576775ee225a924b7a5. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZWDW2430905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf36bb434a6c1862f08557e92782250953c43b95a28ed5523b0dda3066f534759. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZWDW2430906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe68d66bdbb3645a13526dff828721e472f12b7bd625d0199ba6c4f343df7581c. 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/QZWDW2430907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac5c47aa8b2bfd4f4e4912d204fb7f0ee59d2925e6c5ad8152c519feeefda9fb. 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/QZWDW2430908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18c55bc07836793b09fef79e2903933c396e5cc9eb7bd6debefa80c43dfb1333. 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/QZWDW2430909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25a894e742834b5cd8d9b7ecd7fbf3a99dbe865fc5b997fc0db2d56fd44028ab. 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/ZBO4F2400028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa32cdfea8f7e9d7c9606e6582d56b1973faa0b0943aab531c0f10156b27a7fc2. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/QZMEP2360303.