Martin Joseph Marquez (born 8 October 1964) is an English actor. He is best known on television for his role as Gino Primirola, the head barman, in the British television comedy drama Hotel Babylon.
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 0x5681e06bcaedde6ce8ee3bc51a40ccc6f94126dfae9121339d42bbb66d0127f1. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/dde9f7ed-61c2-44ea-b00f-c9845240eae3.json and https://artists.proofprofile.net/proofs/artist/dde9f7ed-61c2-44ea-b00f-c9845240eae3.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 0x9f706645d28a0166b5a7d0395844784e4397ee5c67eca67e561c8e8ec6c3f54c. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USDXS2100457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77ec0077beaaa643e90185e324ed48c08cfe0d2629950dedf07fbb31b76e3084. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZVUD2300154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43544f52dbfd927d48b7970bb3dfa4c293b13db15162a84e22db9c46fc1824ca. 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/USL4R2128840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x665d739b500cfffa5e17e587fd1a46a9916f06d3542f382b3177ea0fe8ea7353. 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/USL4R2128842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dc9dfe914243ef117b087ab7fc2baa76d84fb8298af8a5bedfc3d8ebb3ddd68. 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/USL4R2128844.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf95f5f75234a9c3a4df5b3d9371a723ecd8d27adc0526b753f3a3c0fa241089d. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/USL4R2128845.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x288bad47630026478dbb7908a44e06ddf367c938ca3b5a81a5f05f610ad16027. 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/USL4R2128849.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ab56d405a7aa01b0347e3b01ec1f03bc961c08e3353fb3e6ddc676e21382581. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/USL4R2128850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf33a2e0fdc8ab728fc0525fd6a151b2c62a5f3da795bd6f632c2daa3931fe97. 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/USUM72003868.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41815e8d6101705c7447d9051b259b5358114301df07d2e24a90ed6345f2d2ba. 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/USUM72014244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77fff0deb27c26bf0aca724dfa097bebbd795796544c592705fbf351bfcc9bcf. 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/USUM72017069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c20b806b4b44f6b8c34738aee940df95bc01a9dd3f264f4da7fde002330192d. 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/USUM72024186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94089870933e8f6706354f69debad590cb3b7285b94287f0bcfddb717ff37b72. 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/TCADH1725965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2667dc8a8be89e5e3f90fede3d5617430101ebc26b95d55745c21d9e5045154. 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/QZDQH2393038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x932a22c189a581ea1d9a4ef99b2aa5c0632a1be450ec37cf56434f2e6537400a. 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/QZDQH2391576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5a20ee1ab65349c7f6e8e1f730aeac119928cf76858dd1a1cc06e38215504bf. 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/USCGH2382346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79edc52468c517031a642fe4072b3d69973d449995ce484fd997afef4f120398. 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/USCGH2369558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x546d38e239445d59cd77ca93ec9263f4261b62a856198e2b5afd0464fd0086d7. 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/USDY42225056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c20b806b4b44f6b8c34738aee940df95bc01a9dd3f264f4da7fde002330192d. 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/USUM72024186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41815e8d6101705c7447d9051b259b5358114301df07d2e24a90ed6345f2d2ba. 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/USUM72014244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf63293eac985e8e4da8dd4e299564b85d74a2d8e7c7d1232a6326573bd75a4a2. 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/USUM72013378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf33a2e0fdc8ab728fc0525fd6a151b2c62a5f3da795bd6f632c2daa3931fe97. 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/USUM72003868.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf33a2e0fdc8ab728fc0525fd6a151b2c62a5f3da795bd6f632c2daa3931fe97. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USUM72003868.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x290527aba7faf8ecb364c3941b67bf51850ca20eb0f3f6dd578e853656464377. 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/USDY41933908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf4d82e229890978952f7075fb44c9e4a5d80d738dafc02a8cdf1006c69a9e2d. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/USDY41930107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c79ff1596eec392183142836d68bb7b2ce842fc2ac3b11078dd6165ebc07708. 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/USCGH1925717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06392ed1fcac28c87dbe1892868bcacbf3946777702657b9bbd30f8233413786. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USL4R1812661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3de26c3c76b3d02c8943f37ec79a48f29860b9ceaafe045f6521b43e5341e1fc. 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/TCADR1812754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dca9a67db8a1bc047851fb79959c11b14deeded7152b179ec6c0f15e64380ac. 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/TCADE1767654.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77ec0077beaaa643e90185e324ed48c08cfe0d2629950dedf07fbb31b76e3084. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZVUD2300154.