Mark Dwyer (born 5 August 1964) is a former Australian rules footballer who played with Fitzroy and St Kilda in the Victorian Football League (VFL) during the 1980s. Dwyer was a wingman, best remembe
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 0x16490408c98749f1b8f5075f1e102c6982b23e33787a01a55de820cc220f979e. 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/b3f85f70-a3de-4cfe-808f-fbd16e5bd1ea.json and https://artists.proofprofile.net/proofs/artist/b3f85f70-a3de-4cfe-808f-fbd16e5bd1ea.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77e0cf7af7b49838dbd8f151f10390453496d5c1cfba21c377672f9b55e833b8. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QZK6L2257840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b2742895eef12f1ac4053d3b8afc412e15ac5a3faf89ff897dc37d4578bcec2. Chain 2 (Bitcoin): anchored in block 957884 (2026-07-13T16:55:06Z), 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/QZK6K2414418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb70cdc6d43af865c237e9dc609d715b11df3b1b3d004e6e6dd87cc241227a42a. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/QZNWT2357181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f9f1c6f4a5d80e573073e2b9672adabbf636fd3ba71066217ee6d9c70fa9d6d. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/QZNWT2357182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b67e2336e3c55644b48d0d18546e386a80ec15a11c4343f5da5e69701b92149. Chain 2 (Bitcoin): anchored in block 958891 (2026-07-20T16:24:56Z), 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/QZNWT2357183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7f15513d3de766bc35c368129d2f751fd26cc84595db9ed1b771ef0c7179684. Chain 2 (Bitcoin): anchored in block 958726 (2026-07-19T11:47:20Z), 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/QZNWT2357184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07fa3bb847ce9ce699c0d2124d31acb9410b82cd66cc35823aea45ac01c4b977. Chain 2 (Bitcoin): anchored in block 958817 (2026-07-20T06:29:58Z), 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/QZNWT2357185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5493202d91c70afcde3a85675fa34e916db637eedd8da81adb1f378af59f061. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QZNWT2357186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda1505f864bc44bf42492586ea854749592f4ec44f5abc37d28b94a2d930a9c4. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZNWT2357187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4560452b4d8de3c6b6d1fb080601f2496f1102b0d9464ac6f11d146f29a38b81. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZNWT2357188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd945bfe7028d610311194f84d0af8b3652f2e8e563bc952562a27a47b7621f0. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QZNWT2357189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee2148bf1b67e138922616261a662facc14380e9f459a4b7efb62d25f9e19950. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T17:27:55Z), 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/QZNWT2357190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa48dca75219b8826bf83f6fad9dc7ad513367799287d34554464c6253b0662b0. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-22T00:26:53Z), 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/QZNWT2357191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa36fc3902819072acd7f83e9f385967efcb1175ec16cf84541602ca4e059dc30. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/QZNWT2357192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0eee408b712d88d8bac9a62e68ea796503b897f60c7eff75b553613fb3b9cc28. Chain 2 (Bitcoin): anchored in block 958627 (2026-07-18T23:33:54Z), 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/QZNWT2357193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79aabfdf34cf1ecd2827b578adb74165d8bbd317177625859cbe51b8b015d1c4. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/QZMEQ2295994.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39f614913f4cf5bfd9deb3a290448063fc7e91476637a32e76c56d932abae004. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/QZNWT2357194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6204536a8ae01a975bc592842b5efd161bf4c6e81ff42b6a3e61bafed759c9c8. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/QZTAX2278428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x704f07fc08012df279078c26566dc7c730a0fef2cbf7dc12da625c628c4d73cf. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T18:00:52Z), 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/QZTAX2446789.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6e2f1d7989d8ebea3f9fe3a7cbd1509cafa6de9fa57fae4d0afde97caddf1f9. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/QZK6L2257841.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5493202d91c70afcde3a85675fa34e916db637eedd8da81adb1f378af59f061. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/QZNWT2357186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee2148bf1b67e138922616261a662facc14380e9f459a4b7efb62d25f9e19950. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T06:58:20Z), 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/QZNWT2357190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1abdcfeababc6757fbff5ffc591c5bffda637c0fb563e4dd738d9c66badbc4ea. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZDA52550303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e2564bba308712dc36ceba4253c2f8cd16e9ae07c4c68afea7b5e15112113dc. 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/QZMEM2110590.