William Maxwell (12 April 1882 – 12 October 1917) was an Australian rules footballer who played with Melbourne in the Victorian Football League (VFL).Holmesby & Main (2014), p.562. Family The s
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 0x8b5fa83b0668e48836a54b5a11ee141b92f48d43540224370b1059d938efd0b7. Chain 2 (Bitcoin): anchored in block 954008 (2026-06-16T21:31:27Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/337f2ff9-f779-47b7-be35-d9dc370c0199.json and https://artists.proofprofile.net/proofs/artist/337f2ff9-f779-47b7-be35-d9dc370c0199.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 0x81413d611abc1aa8d339f674d40b8bbc78cb97fe9e8185079fabce4965092dd6. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/SEWSH9900103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08df05fc144248eb2318369a5d1a94129f0460cab496cc23668ee2dffe033f87. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/SEWSH0600203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d6401eb80b571516a4fa348655e8d7bc641cfd6c6b77e119f86bb6d104b1f2b. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/SEWSH9900107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a67807c2a0668761c86ebb3164d9021f9e9c65f59a8ff462bf18c7b63859c80. 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/QMDA71589957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xced66138f998171973cbc5c68126f3b169e8c51f4d44ede972c676ed0e9cb35d. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DEAF40100314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0edd4a7f4aff11b0eb458ae2fad7232aa80946e92fde44dd165b4c8c76b6cf9. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/NOVBE1801010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a922bda004aad752b0927ef97d7482472286d5d261619c50a54dd62484c8043. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/NOVBE1801020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f3f3291ebc2e0d2dec4b315f72362c22fa90cd66b60529679d6525d08bf7cc7. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/NOVBE1801030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e11b81ec5e9732dea94f357a544ed968a6278af14e8bb86de7e712bfed35a84. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/NOVBE1801040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x362b844d0d3a0cbb4b74d27be9487831d5bb4938d4db36f1bafff8bd9c6aecf6. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/NOVBE1801060.