David John Ian Dunn (born 27 December 1979) is an English former professional football player, manager and coach. Dunn played as an attacking midfielder and spent the majority of his playing career r
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 0x7c2f6de0f9232dc37c7748a4bfc945cb8c04ee12ff124b797a3d27f21c95048a. 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/56e60771-293e-49d4-9d7d-285ef3e02f18.json and https://artists.proofprofile.net/proofs/artist/56e60771-293e-49d4-9d7d-285ef3e02f18.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 0x7f1b5643d10c6563e54185090d58039bbad00bd49d46721b54ba63c3cd940d54. 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/USDHM0907868.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4044ab18e88e2323ae548b4663ab5a16cf404099a53ebc39a29ebcd8a56658a. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:55:40Z), 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/USDHM1203603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd34644d92ef3a8c23635ccfd3db24ca2327cc2af8286f3df3ae19f64b7db11b7. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/USDHM1203604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba790db4ffe0f89a36e4c1f2e219dbc3be797ce8b20850611d2469580f77ff53. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T09:40:37Z), 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/USDHM1203607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0b3e218d225553362fa6777dd5383f36325b43f3a23ad149f50f6f1a36c5943. 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/QMGVJ1400094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e0b21eefcca337e406add1afb6c62410a87b6d464b787e242d6c050fd090704. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QMGVJ1400098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa351b77bab4788d229cb55a47d9b3232025a487d90e3b572114dbba640572621. Chain 2 (Bitcoin): anchored in block 958572 (2026-07-18T15:47:37Z), 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/QMGVJ1400100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bbf8ae31283f0fa8d7d405519e36d78e2fdf5117f0be047fdc6250e53077590. 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/QMGVJ1400103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66ba54c346ae1d37ef06cf80826a6accf06cdf3d3b4455a04b823d8f9989d7ec. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T07:01:59Z), 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/QMGVJ1400104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b8b2ca537c9eda07d7c7fef8815bb23d77e47c76afc7b6eec6d9f4e7aab2236. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/QMGVJ1600171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb60874c29f7786a627f58a1c995083f9f5c60730f34565cc20402d9a77da82c. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T02:46:47Z), 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/QMGVJ1600172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86e6c5bb2df97dc6b33357025079d0f02e7958f40817dbec8f06d0f67c9f1d84. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/QMGVJ1600177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ea042cad1e6b7644292b9e369fb66ce0299bbe2e6c4fcdf9c573b34400a7fdb. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/QMGVJ1600178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25f4b10fc28893981f7781bbd9933185576e50373f820e20ef5a9eeb5450f648. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QMGVJ1900272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x333257207721a7d69e869a0b7bfbceacf328682bdb59d094361cdfeb80e6484d. 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/QMGVJ1900273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x653ae02ef669fda5f36411ff668e4d96ca4b312ba19c2a918bc48b46cb076eda. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/QMGVJ1900269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91c81cbf7c753a5e0ba2e3ac3f3b8a365e48942bd1b16744bd2fc3678fd1c483. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QMGVJ2000272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x794d2889eb5ebd9f216544a2ba5e01e6b2cea556a69ddea5646c93b27c0a6e3b. Chain 2 (Bitcoin): anchored in block 958142 (2026-07-15T12:46:57Z), 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/QMGVJ2100094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20b5dfa53caa746e772df227986d7fbd47302646b83958dca7a78c9e778a7beb. 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/QMGVJ2300027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b203c34d1b6722c9744802bab6aec491eef6cf4103f3580d618f49bcbf720a4. 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/QMGVJ2200271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ca254ae79db42c205b735e06ab3a4f7c43f17563ebc2f34370f2e847b6441e3. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QMGVJ2300029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1174414506fc611789d6324c8398bcf9b2de66bc7bcb6e17c1c03a12133c97c5. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QMGVJ2300031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7957aec08b2fee5b3f81322befa816b25076a2a692d20917963c41b13f46124a. 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/QMGVJ2300033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6a9d9ca6e592c649c24b4c86f7180a8d5bc8232b5712dacde46f90ed6a5bcf0. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/US8391700049.