Artur Jorge dos Santos Soares (born 15 February 1996), better known simply as Tucka, is a Portuguese professional footballer who plays as a forward for Juventude Desportiva Carregosense. Club career
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 0x06d1fef1cfc210df912a02ef807d226989dec28effbb9b6a9a5de89d00cbb192. 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/839518fe-2350-4b1a-a0c7-575f4d6b4583.json and https://artists.proofprofile.net/proofs/artist/839518fe-2350-4b1a-a0c7-575f4d6b4583.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 0x5f2eba5f765e306fbc0879b67664199ffb1ee941e29a05c5edc60c62dd3b5e4c. Chain 2 (Bitcoin): anchored in block 957591 (2026-07-11T17:21:30Z), 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/USX9P2353067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa375e87bf2d887883ba0edc5e5eaa4b07e000c051199531fdd1f8e68a004addb. Chain 2 (Bitcoin): anchored in block 957852 (2026-07-13T11:25:45Z), 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/USX9P2353071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d928c3805b0f60c2a65f2a9be8c5aa008ede09c34827083c3245d4db2ebab54. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:07:44Z), 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/USHM21120144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x151c701be717071125d97de783a5b8cecf4f1d1e54e03638e006136865772ea1. 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/USHM21120145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e1413a18032043f9bf5f413cefb096cb64cf9bc5d8e35e971b8b9a8f672875d. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/USHM21120147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb33271aecd48704d6b2b739e0710b1eae4be89041fff1ef9111beb45b616ebe. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T00:34:15Z), 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/USHM81230505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2118cdf61ba65a6f81d14ae4d59ee8706da9cee136505cce924bf36b3e7797c6. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/USCGJ1409000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d5a13c1b75894420368a92e32ac845eb459449a2de0be6b558bcd3fdda9b8ed. Chain 2 (Bitcoin): anchored in block 957596 (2026-07-11T18:43:56Z), 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/USCGJ1409002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb27b38117418303aa49e03f44aca05be98581751ced7b71f6d32d14b1b4558e. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T20:12:32Z), 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/USCGJ1409012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda0ddbf195c3c550f17f74fb16e88c29921a369a9c5aa8ca9100b861a7a25aaf. Chain 2 (Bitcoin): anchored in block 959009 (2026-07-21T15:06:18Z), 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/USHM21626818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2517700ab8658d98dcd7b83b217ab64fec993fd0809344e37f878a47f4c43254. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/USHM21626819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4c8a7801de8adf24bfe6a3d75fd39815f0c78d839f1263f72912699ed44bc26. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T02:42:47Z), 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/USHM21626823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4af2c85091471032eac1689b53c436037aaac44b25566bae17341f31b9293d8. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/USHM91843104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefe56170ef78a3f6a11666b205dbfed776e0b707a543c91895510975d0660e4d. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/USL4Q1823750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a5546682d7bcedb8664f5368c0bb1272b1fba37b81c8e2df0913054a460b3d4. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/USL4Q1823756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89ee58abeeba87bceb7a4ecc0d2d200a8cf38fe47ec799fff604ee246561bb4f. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T22:08:42Z), 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/USCGH2210371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79df3927094064b7126a95c58fde273c698df87081566fbe77e51faa2fbac762. Chain 2 (Bitcoin): anchored in block 957785 (2026-07-13T01:55:31Z), 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/USHM92237039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x646ce5f2031de65f94f420e64ac465526bed930ca5ecf57ea699bde7d4188f46. 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/USHM82384610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcc9e7d51743195efcd9959730eb21859f4f5eba328727d98c267731bdd11bd8. Chain 2 (Bitcoin): anchored in block 958526 (2026-07-18T09:09:53Z), 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/USDY42437322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcc9e7d51743195efcd9959730eb21859f4f5eba328727d98c267731bdd11bd8. Chain 2 (Bitcoin): anchored in block 957591 (2026-07-11T17:21:30Z), 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/USDY42437322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7728b0aaaaa8b8e5a9b13ce6508297d88963de82a943660b8c17531255ef8222. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T08:23:53Z), 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/USDY42449205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5d9f36e002a9b6250b720c6ac720bd4241265b9688528d2b4418e868db3b2cd. 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/QZNMW2494124.