Alex Ojahn Matos (born 3 October 2004) is an English professional footballer who plays as a midfielder for club Sheffield United. Club career Early career Born in Bedford, educated at Langley School
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 0x5fc169e3643ebe1331a6d41db3d500d9560c6c788518874b548f178cdbf65947. 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/9234cb03-b7d1-4a79-80e0-6854f3eba51f.json and https://artists.proofprofile.net/proofs/artist/9234cb03-b7d1-4a79-80e0-6854f3eba51f.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 0xf792c1a182da0b84af3d240ec259cd4af463b860fafeef4ec3c7e5b7473543b2. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ITF251200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x764706b95fa527d39211fc2a6e1ec5bc49f9d8e0e9ade6d1a6ba4ad4341f3194. 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/ITF251300040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b88b4bc288cb0099c3c379eafaffb33d7844db329fa8334001ed9541dd586ee. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ITF251200027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc2987ccd1b116c28bcc94ce639e8cfaa4454a970bb3c52fde015b5924b3b04b. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/ITF251300041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84c01e8e1f9b8107c639e2e4a59a3579461772c19617fbae29ab5e7c793dd537. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ITF251200028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ffda8a493e1a665fba73fa5230d45823dfc37c7bcad4eff3f19a71d338968ba. 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/ITF251200084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08aa09c2edad29e5fad6bb85ad8478f2692f514cd7b43065efef82fc40bc0b97. 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/ITF251300042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6944574c8ef6876ec91a363ee54320486a75264d30e9c24ab04baf9e2390cf9a. 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/ITF251300043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x321a4d875ffc10dbbd572ced4b42d2d1fcc63046b928f84982ed024a13a8a795. Chain 2 (Bitcoin): anchored in block 957048 (2026-07-07T14:18:56Z), 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/ITF251300045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x290cc31d322749af103377b49941471ce9acffe62bc1f8ee67a26b296a153622. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/ITF251300046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2112402eee7b25b8af096af3e557a67ae4cee2684f843d918df9c86756ef4d5b. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ITF251300047.
El Salsero De Ahora 2.0 (Deluxe Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf792c1a182da0b84af3d240ec259cd4af463b860fafeef4ec3c7e5b7473543b2. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/ITF251200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84c01e8e1f9b8107c639e2e4a59a3579461772c19617fbae29ab5e7c793dd537. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/ITF251200028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2112402eee7b25b8af096af3e557a67ae4cee2684f843d918df9c86756ef4d5b. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/ITF251300047.
Prefiero La Soledad (with Anthony Santos)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54acd66a1d70453d01f555d34bc85825f42793125fa01919307baba7a463898b. 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/ITF251300212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92ec334ba2b41d3118cbfe6ac5b4560b6188483668a25f7aa030184803572ad0. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/ITF251400042.
Lo Malo Se Va Bailando (Prod. by Roberto Ferrante)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdef45e61d895f1f91058ad60a66ea5533949409cce0e0823ccaf671b2d269f9. 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/USEWG1830479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8195435d7123658017d718902ba0b44fdf94946e0cb1b714df14b67878ad524. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/USEWG1912000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6150ecd4a05e4e50d1773a37b312c3717f5f00f484bb30120e0427852ef6f3f0. 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/USEWG2082884.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fa68d7a1879f684ce71101991ec351dbd6e7856687bf0ccf85710d550f50a0a. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), 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/USEWG2120002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7abb11efffd9fb219d40178c3398eb6e63cadc0e4322ff90af5b1c55aa9073ee. 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/USEWG2120003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa879f30516503a3edc6776c5e7ea62692a11879d67cf2dbe9776e2668be213ee. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/USEWG2120004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3388a51419aced09fbadc16b6042077fceff65a758384155dc5c9a499c3b2b7b. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-16T00:01:35Z), 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/USEWG2120007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbedccf4e16e8936648569cdc7cb79ef080217b574af1e57a851baf85b6cf26fe. Chain 2 (Bitcoin): anchored in block 957827 (2026-07-13T08:59:54Z), 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/USEWG2220000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc755f1bfe1701c9b52f1037c2f7ad33a5ead6699401e3c604804b40dc0b97fc1. 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/USEWG2294311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3fe03f42246d00b33110d720dcc1b9dc2eec331b73c8a1245398cefb0b1a630. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/USEWG2300123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b69ffb27b92909bbb3c0613907cae56b99055707e6f8915f7817119ac342fa2. 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/USA2P2223080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61a6a971a030534da21308b54419b226b4ef96a84f13d52317182911d63bdb7a. Chain 2 (Bitcoin): anchored in block 957048 (2026-07-07T14:18:56Z), 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/QZHNA2326548.