John Lewis Schumann (born 18 May 1953) is an Australian singer-songwriter and guitarist from Adelaide. He is best known as the lead singer for the folk group Redgum, with their chart-topping hit "I W
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 0x243ef6ac6d856552431fabae5cde70294bc6262aa6ebf4ecb7d2d2558cecc008. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/330880ee-46a4-408f-a0ed-ca893d0c84ba.json and https://artists.proofprofile.net/proofs/artist/330880ee-46a4-408f-a0ed-ca893d0c84ba.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
John Schumann Goes Looby-Loo: A Collection Of Songs For Little Kids
Portrait: The Very Best of John Schumann
I Was Only 19 (A Walk in the Light Green)
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 0x4dbfb6060ec535f8a8021b8d611570ccfcd73bf41aa89bb2ad98436e79f164c0. Chain 2 (Bitcoin): anchored in block 958673 (2026-07-19T05:38:28Z), 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/AUSM08300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73ab03f2789a17cddab16d04542da7555f311502479766f7e58e0d5b0c558164. Chain 2 (Bitcoin): anchored in block 958051 (2026-07-14T19:14:42Z), 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/AUBM00600163.
Anzac Biscuits (Inspired by the Book "Anzac Biscuits" By Phil Cummings, Scholastic)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bc726c452dde889cb7ed9b7d53e09a1b83ae0c1aac6ea9092452f2d548639b6. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T06:50:48Z), 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/AUAB01800949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97bd5b1ef0d086e416ba24145d40574b9e8e5ba222b94145e439a8162845cdb4. 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/AUAB02300746.