Ben Walker (born 13 September 1976) is an Australian former professional rugby league footballer who played in the 1990s and 2000s. A or halfback, he played in Australia's National Rugby League for t
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 0xc3a45410ceab4fdc6dfb73b8e52b10911cde578d6afe5be3012ba5a1403c88d6. 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/e6f2f4ca-2642-4a80-b0e2-8043defd1d8c.json and https://artists.proofprofile.net/proofs/artist/e6f2f4ca-2642-4a80-b0e2-8043defd1d8c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Start Again (Stripped Back) [Lockdown Demo]
Start Again (Stripped Back) - Lockdown Demo
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 0x1d2dc7fd792e07930a88beb934febbe2d3530c8a5055d8f67c74bbe5ed0b375b. Chain 2 (Bitcoin): anchored in block 959052 (2026-07-21T19:50:27Z), 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/QZDA72125514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe77a4546c56ea90b5b79d290ef59d54332fa902a118b62ede70afab0fce594d6. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/QZHN52286328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x513174ab3fbab3ff997286875276c6a0f9a3016cb83ec043925626d4169347f0. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/FR96X2421415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1ad69861f45854adc88a7129ffed4c53fd1b173cfbd9edd7e9413c06e7ed917. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/GBMJG2422581.