Lesvin Aníbal Marroquín Córdova (born 7 December 1992) is a Guatemalan badminton player. He won the gold medals in the men's doubles at the 2014 and 2023 Central American and Caribbean Games. He also
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 0x8f147a0da7f5346f338bf1417dc4d88e2f0f77cca81633a089d15977176f9992. 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/dd215c39-1deb-4507-bb3e-dd47de5c10cc.json and https://artists.proofprofile.net/proofs/artist/dd215c39-1deb-4507-bb3e-dd47de5c10cc.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 0x04362465851e82085ef86faf584200f15de62e045928ad8b4dd84b7323a85a56. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/TCACG1503996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc604f36228eda3744181e9e4db0309eb3f481cd48e1e1bb3fb0bc747bdb6ed33. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-21T23:01:29Z), 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/TCACG1504004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd456d7ecf3d44ca88e376be2d76810def0eb78a4b6fe28bd478dcb47ff53e9b8. 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/TCACG1504132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8bb0e3ffcdb925bcdc4225894feae42d5e850518eefc1e16344cb86273f1da7. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/TCACG1504133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e4f18f4a82c73fe85398205e71a849e31b514929ca9deac5bf167ac03697381. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/TCACG1504134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73db70016a98c2c3afbc03007d27d14d97726ccf53c3cf74314dbf0ace691380. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/TCACG1504136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c6a7e3311254c9c511a26732b64601d78d023ec59e474f45f7f3cd4024fe726. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:44:32Z), 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/TCACG1504139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2682c94528f74d07263a285b41d47d166be47db31b40d18cc4f719af90268996. Chain 2 (Bitcoin): anchored in block 957834 (2026-07-13T09:42:16Z), 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/TCACG1506200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c87357e4620bc63db28a607a680ba0b5e67c6e6135d2328fb09f139547de11c. Chain 2 (Bitcoin): anchored in block 958390 (2026-07-17T09:35:49Z), 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/TCACG1506212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50de8c728c6b44c500e3f8e33bde45209b83a54203c98df91a73c839b35e38b7. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/TCACG1506215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42b4f6e6317b938a760abc2bcf3cc9fbabdc273b1f54a7cd942e8f2437786b36. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:42:14Z), 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/TCACG1506221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae3bc3d5be565e1e8673ca294f8bb1e0a77de8f31d2bb7436796c2241780ba5a. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/TCACG1515571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27ac1ae6dbdc5307cbb0147acf3744b735353e03798f6cb711a126fb9d9083e4. 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/TCACG1515572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a3fd6e64802986dd1ab9859aec360318bce9a33ad942d4f4e61c351d75ee697. 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/TCACG1515573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6526f27a86f1029a9ec790bc483df50d0a2fb5459025df56233c69fbdad6494d. 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/TCACG1515574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30cd6c467bdaa666802f861fec32c50f324699c0e39c08dece085998ddbdaec5. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/TCACG1515575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5734f0aadea78673073add576b4b843a59a6d0bb8de06d40a22e1cb2edf440d6. 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/TCACG1515576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee0e63785cd2fcd49ccea540996e0890d845c7f8c01ce1803fc4341340b9da7c. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T12:03:04Z), 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/TCACG1515580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb9bb97f8229c111402c587f66992889ebee4398b238145ef5374dabbc3cf86a. Chain 2 (Bitcoin): anchored in block 958329 (2026-07-17T00:16:14Z), 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/TCACG1515581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c7c65fd897e133db9a30200cbd95e763fcfa91919f2bf983f7f67790dd66983. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/TCACG1515582.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd8915585e1753675e81a3380b65be60d87232b8097f80601bbb2f22c21005fc. Chain 2 (Bitcoin): anchored in block 959051 (2026-07-21T19:48:03Z), 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/TCACG1515522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd1a20f0942dc4f871a86739721966cce223ea80ac6e70138661a8a332a0db2e. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/TCACG1515524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb06e89eca22f3dfd6c1a4ea68c48ff8ccc6fa16569c72bd4da328de89ee305c3. Chain 2 (Bitcoin): anchored in block 959051 (2026-07-21T19:48:03Z), 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/TCACG1515530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec89820abf265630967c9f2477b3cc599656fda54789fdf8ea2aeef577f490be. 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/TCACG1515435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bb5cb78267fbd7c8ad33494715b89bb6950ce7d3a056df68c1b81e0f03d530c. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/TCACG1515444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73c49903008703c8fa249695138495da4dff44706e418b009a629b48dccd3070. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/TCACL1682849.