Guy Cuevas is a Cuban-born writer, musician, and Paris disc jockey. Born Guillermo Cuevas Carrión, he worked the turntables at Club Sept, and Le Palace before becoming the artistic director, first of
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 0x1c52bd5ec0588b9f7badee5e3430c456d8d74868388d5dd9dd73f8f0453788ec. Chain 2 (Bitcoin): anchored in block 953819 (2026-06-15T18:31:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fa831b29-8290-41dd-a1e4-b06ea8b8093f.json and https://artists.proofprofile.net/proofs/artist/fa831b29-8290-41dd-a1e4-b06ea8b8093f.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 0x366a46d53e77374ecf9a0c57b7daa34f9c4c77a532626ae5291291283c73c13a. 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/GBCLQ1700030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f5484c829250628fa7732d72635a0de3f9717fc55e043aac086b7f5f3ca458e. 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/GBCLQ1700031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x484d36b2e459ea9c09e9c404f4b31be1e8fb23b5c56106a34867f79d756ff9f3. 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/GBCLQ1700032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0b79a1424bafa44d359f999b93bab9a213bb871cc6820148b561fe395c99250. 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/GBCLQ1700034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b08635f518647c598662853225f31d0ba2c4ec1515c1f5fe65db7509f628ef2. 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/GBCLQ1700035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa486ca915b676e220c24639ecbb29ff7a1ac5a4c6d5dcd555b5e41e25839fef7. 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/GBCLQ1700036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcfa58febc035f56dda1daf9729e8183b610fc98b857b1f6a7412916b758e602. 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/GBCLQ1700039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1206a997dd8ff1473f5d11dc7ee9136ea5084529edc3aed315ad7c5101c96acc. 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/GBCLQ1700040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3a8b90c9da6964ff733a8d247d93be414e4bcd83de53ed922aa4bf4c1905a3c. Chain 2 (Bitcoin): anchored in block 959146 (2026-07-22T18:03:42Z), 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/GBCLQ1700041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe49e1afa8e6b5b68c2d00aa73e5b80deebfa91236c1028206c7b47e238cd6f2d. 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/GBCLQ1700042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb69323cb8e4a4fdb7382e709f9540f02a1d4c5dc1f157ccfd77f9447bee17a0. 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/GBCLQ1700043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32edaeeabd97651cf1ed4f7c5ab602d0c2b43ca18bf3bae693ac0b6e4166160e. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-21T21:26:14Z), 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/GBCLQ1700044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4a322ed9991d38e9084310f07e0b5c9791388a24a817d18cabfd72a4a8ad00c. 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/GBCLQ1700045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x272bc81e65572518706f1ea27e0a72f523ced8005b32af7b1d4226367890cac9. 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/GBCLQ1700046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc11ad290740522fa93cb7fb1edca915427f0a85f0e1182a5ceb6ab2f07795507. 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/GBCLQ1700047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b9a6970f7aaae681a8592e7abdb1e03394a0767a8d2e46e2db0c681bec0c86e. 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/QMDA62170297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e5e999f9fb4f863ef75889d3ed18f4150ed62ae8778102a69bfb8b3f467d620. 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/QM6MZ2207768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e62106e0d5bd464ec8214340a1459a35f36200f45562c4222d2613c1ebb714a. 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/QM6MZ2207773.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x632e9d11edf002e39427158e368a7e3ecfade756522b5914449d3283ff94c453. 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/QM6MZ2207787.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7a11a80a141162a3b2e6825266c80ed5a720378e9f4e971aa1b01854334a137. 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/QMDA72368788.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b9a6970f7aaae681a8592e7abdb1e03394a0767a8d2e46e2db0c681bec0c86e. 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/QMDA62170297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe49ae583e3e50a42abea90ee2b587d50c3144363956bc12fafae7d2fd97bddcb. 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/FRR411703001.