Malachi or Malachias (; ) is the name used by the author of the Book of Malachi, the last book of the Nevi'im (Prophets) section of the Tanakh. It is possible that Malachi is not a proper name, becaus
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 0xb3d90c919ea20815aa2fefa2f75753fb46702e246e96a653d52644bd61e36227. 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/0e746308-f6dd-4fe1-9fa6-2296fb0c3209.json and https://artists.proofprofile.net/proofs/artist/0e746308-f6dd-4fe1-9fa6-2296fb0c3209.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 0x6e1d180f6ead1a40d006cc0992f8dfd9ceea2e6fab131596d7bc97bc658a721b. 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/QZQAY2430007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe97c85a371b23dcbb70a586810f72a33b36a20353bf828e24e8cc6183176d016. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T21:20:45Z), 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/QZSYP2459778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82fa1882da4253706036db15aa58c373b627e2ce1529d9a3a53230a86ef4dfc7. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T13:14:05Z), 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/QZSYP2441944.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fb3f8b768268208884347f338d8b8da8dcf29a4add28bf470b8edac1274c63d. 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/QZSYP2425307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0facd401ed101ee5dc62a63b6d8397ae33cb6301fe5fc2a13b7150b30f12f1b8. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/QZTLA2534086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81cd7438be9d5bbbd176bd07549365f029381034d9d342f3cbfe042c990e77c7. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-20T00:00:39Z), 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/QZTLA2585495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75cc962294225caf9ba7b7364d31d45f78c89423eb0bcdf1ce951af910f490cf. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/QZQAY2590534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc366f5facf53dbc8e278fb2b2824842bd4fb7328868bfb66818d4ec95dfc637. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T07:02:52Z), 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/QZQAY2525328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x662023877969fedea903d17cf384b2abb34cd06f054b038154463a12bd3572e9. 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/QZLBC2402038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd51664b61dac42e56e6ac31acc61fc4fe92886a4c4109bc1712417c54e2b2d5. 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/QZLBC2402039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdebe9fcb00c293c4730c08d72ed505f403f2146ef2485248d92b6aa0a905ff2. 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/QZQAY2480571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa422e3585cb73d24304d24d7c8c0e277122001ded80d418128b252c73542e7ff. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZQAY2449114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9107e864b781534616ee383ecc90950b6ff9aad1b493b1fb0142db8d7ada4d22. 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/QZQAY2465448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x210f7b134d4140a3157f2f2bf8841c429c6aa91f5837cd0a0d6cdeff73237524. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QZTLA2440308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9107e864b781534616ee383ecc90950b6ff9aad1b493b1fb0142db8d7ada4d22. 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/QZQAY2465448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x210f7b134d4140a3157f2f2bf8841c429c6aa91f5837cd0a0d6cdeff73237524. 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/QZTLA2440308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x652ff35c831ca1384aa0d8c4093880a04f2662ca1e8f88abd03d29e7d2c4c78a. 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/QZS7J2429511.