David John Andrew (10 November 1867 – 18 November 1928) was an Australian politician. Born in Castlemaine, Victoria, he was educated at state schools before becoming an apprentice civil engineer. Late
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 0x0d654cbfb757a27fabc6c602cff4ee95ce5ee7fa8c02a0d5e2ee7517243d49ae. 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/e1d3189d-e920-4b65-956f-f0b2b414ea72.json and https://artists.proofprofile.net/proofs/artist/e1d3189d-e920-4b65-956f-f0b2b414ea72.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Sleep Project Phase 2 (Enhanced Audio)
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 0xe0bf48995d19fe0a3ee0cdae457b521e737fb643c4073b85e9ac8ba45a198380. Chain 2 (Bitcoin): anchored in block 959073 (2026-07-21T23:25:37Z), 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/QZHN32050018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b0758ffffd99f7029c10f3891a0388584bc80b9924b31e8f3fbec143c8984ff. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZHN32050019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f2db4f9a8c5514a2ac1d100c49b834a24a574c93d225e5428a56533eb675560. Chain 2 (Bitcoin): anchored in block 959088 (2026-07-22T02:14:33Z), 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/QZHN32050022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd75d1ea80ce85b4a25b4ef2fddff5a3537bb5eda4085dd572939678b4f501c8f. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/QZHN32050023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc53f8140dce4b884d3682559d5db3f568c7e9b0fe1d49cff75f00c9d24e57618. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/QZHN32050024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16d2df87a6ae99995ba538ef21a89afa76db2dfb74dc1a08916663892c4c3228. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/QZHN32050025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76c43812b794ff68aa9ba060d9f457c382c8cf02b59d6ebd5d654b9ba2a1b6ac. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/QZHN32050026.
The Sleep Project Phase 2 (Guided Meditation)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03f433716c2fd1844b61a5ad5c2cc5db1dc0f8ef3713c49cfbd13ccf13168c96. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QZES92083491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ee17ecad230cfbf112fccd17083d1634a25014e0146c813dd7703281e2557b7. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/QZES92083492.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45416170b5f2d52595db31ecb17b77869e2a9a48e62ced2532371fd8969ed7af. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T16:15:11Z), 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/QZES92083494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x978d2b4f1092ce65d18180cea95629eb98915bfad9afa0bbcd0ce788d5dbf7a4. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZES92083495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0beacff1ca735c02cf2a46129b696e1b590362eeb14ab9c533e4e6758de9122c. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZES92083497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe967601a6585edd5a4829d492d975bc8c2e590c6f070e55053a8ea209a32d7bc. Chain 2 (Bitcoin): anchored in block 958390 (2026-07-17T09:35:49Z), 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/QZES92083500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9be2cbabd37cfb7b4698e44d7e34cf3cdb5db8dbde55a15b1f53743a4e155363. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-16T21:55:37Z), 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/QZES92083501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae8585f5742bd68339d503bb1a3d94cae8b84107a4516638726e1a887e94b1d3. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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/QZK6G2107375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1374d00c4c779ff83ed8d553caa377faf6488b465b9ff25a7352093a16d096c6. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZK6G2107378.
Christmas Lights (Solo Piano for Christmas)
Piano Piece of Mind, Vol. 1 (Piano Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d0b560dfea396961f484c1199dfa39e0982a1c5530e225edbf77dd750df8734. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZTAZ2468059.
I'm Gonna Be (500 Miles) - Piano Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd8cd1e1c856078ab69790b3bc2c8518033540c39c176c35b342b9505888661a. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZTAZ2468060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fc2998dcd7aa45c50d4fff59e9b28b8eaad1de7e7dda0990713e4e993f41b22. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T18:01:47Z), 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/QZTAZ2468064.
Piano Piece of Mind, Vol. 2 (Piano Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b48979d2d590150ef673f04e8c474918271d271db23d245bcaebf8e60c61d94. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZTB32458150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65c4aa7eb21b85208ae88ab89b0ac76f49722576ea5e2fa5d71a3e81e8464f39. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T11:41:42Z), 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/QZTB32458156.
Dancing in the Moonlight - Piano Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16ddcf48c25846e14abd571f83b2860318d6b46e41cfd574920ae58aa4b5d212. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZTB32458264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01e76f5fe04645b20bfe0db8ce7ac886d2b18a4485a0aae28847dcf1fdd33b8d. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/QZTB32458266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd05185469144e6a342e402ff3e0f59a084a40531e1a5817153b0ef4903de0039. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZTB32458267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc8054b61ff575ebd568c920ca2a4091771d6dfa607431d9b8d8964d5b79b13a. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T15:07:00Z), 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/QZTB32458271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dc3750fa5c78c1d0d935c4e4a1722cd214d17a12b976c99a1146875cb328f8b. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZTB32458272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8068096861421ea9e4fcb27eb2664aa6a26a6da2ca47a7bcde8d07b31fe91e4b. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZTB32458273.
Someone You Loved (Piano and Cello Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82d71947d097a2aee8abe70a51a458646c59d0077aba50a3bebbb56073d2ecdb. 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/QZK6G2521130.
What Was I Made For? - Piano and Cello Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1552271b7e339cdf2e37a4676675c7baf0f69572653cc9bcd3c9f01c53dbfdd. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZHN52536726.
The Heidelberg Sessions (Piano and Cello Version)