Francisco 'Francis' Manuel Durán Vázquez (born 28 April 1988) is a Spanish former footballer who played as a midfielder. His career, during which he represented Málaga and Liverpool, was greatly hamp
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 0x8c72caf4ce2c9f59a8dbad3f3513f78b720d58b8c352d2db1f60066347444ea1. Chain 2 (Bitcoin): anchored in block 953625 (2026-06-14T11:37:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/23e9c604-d69d-4dd6-b105-62b140d16853.json and https://artists.proofprofile.net/proofs/artist/23e9c604-d69d-4dd6-b105-62b140d16853.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 0x9b2471ba72e6a878b1d089e1bd9092087268a0b376a19eb7df0ee4eaff457e71. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/ES71G2414505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cbf1e45f273cbd034de8f8d370bd98ad20d02e99d53d97986722c5a792f402a. 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/ES71G2419262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b305771063bf65278fec96ed4550aa6cbae3239a007ffa6c03b0bb1a103bdfe. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/ES71G2419260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b0f6b5f54fa3e6079e1e82a701bde9109b62ed20b60489ff0e354c9a94e92fe. 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/ES71G2418473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f16261241c7c00d733b903155457d64591774fad537737ee5e2581ced8eb225. 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/ES71G2334156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x453c9d308cdcb5e9eaaaa53f7663cf281123f005f114938b9aa0f434be00fc83. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/ES71G2419263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcae028b8304f7c7f1fd2861a1b306ccafdf35facd96fbb261e7e7085ee1f75c9. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/ES71G2419264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b2030c76215a3c03014e3bf950e1400abffd310df15c4aea490f15638d9a77c. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/ES71G2419272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7bdde7025cf04bddc3ff371f731017bf5707e74b8d8162a115a2d5cc13c9f53. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/ES71G2419270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7355396bcb877f80a4be94bc6715103c4f7c78931983afcf8826dee8c247a4fc. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/ES71G2419265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70676d6aaa99f36156757a0795de04653c73bf10e8c44e569a370c71449f130f. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/ES71G2419273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4521d291aa0b1139c1ffcc07181ec3db8f52bed1319c22eba303e6dc96a8702b. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/ES71G2419287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3d0143566b56432e441d97371aa1bbee0b5834bd7a842dc4e69caca3be6ebd4. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/ES71G2419267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94725599e911edca23604825052b7d280ff16546aa0ad50a1b39d1a63a2eb011. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/ES71G2419266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cc3dc32b7c05a571d21b4377419971e56beb516a2641493b818c9314af7f01f. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/ES71G2419271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc03cdf331f66d37e95db0bff976d01d5027e9369656552ec69077ef3183b5b53. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/ES71G2419274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c65e648a1826a6aae0b93d54a7880bc7a9d5e5320f106e256fc0fe636bb4aa0. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/ES71G2419269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81279ac09e7e29b75dcc9ae7c48823f99308d39d5a2e11f71da2b2281402e691. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/MXD782200332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c5b6ac27a711aaef435ed2bab69111f8439cc50ad70127ea94b4ddc51e74067. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/MXD782200334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29ca5172307c0d146be78b34c548446049f78cad451573669fc27162a5e8b1ae. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/MXD782200339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb4a456fff48d783c716d48392942cd43f72cc6c692c2647f00905d7544eab3b. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T18:47:29Z), 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/MXD782200341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd032d5e564db53e2e96d9aa9af15a8eab9fc1e1eafcf0267080e8addaea03e5. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/MXD782200333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc47cb61700da0350c4770886351171408b3914f367ecdb8cf2706e0b82a0145b. 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/MXD782200331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb61c19cd94048d6fb2e0341aeba86ef9e9fcf0e6a8048a28882c511eb09f5af2. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/MXD782200336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94760ea0a7443af68d538450ed275106d7e88abec866249d8d134de29bdd6645. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/MXD782200335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f04631d10cdc8f6a7376724028297aa13abf2a5edc1f562b5f6d8087b69ba0b. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/MXD782200338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c2d02166a04242dac5db6bb9f17ddf336671be66db5fcdd922d96206267e1fc. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/MXD782200337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9290ca926adb5cb14a72d06a02bff4a5fe8069084cb220848a468964db2cc791. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/MXD782200340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a2f7e322f8b9ecf09f5266dd3f45f75ecb48250fa077819e9db89d5d6a8e287. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/QMFMG2348920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c5b6ac27a711aaef435ed2bab69111f8439cc50ad70127ea94b4ddc51e74067. 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/MXD782200334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81279ac09e7e29b75dcc9ae7c48823f99308d39d5a2e11f71da2b2281402e691. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/MXD782200332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x014432acce288f762d95e6e004310be29af58a61b22b43c512add425768b3f87. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/QM7282076584.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2eff021dbc62cdc685bdfa073e0d59826c4250fdfff83979b3992614f4476c5c. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/QM7282076577.