Da Youngsta's is an American rap group from Philadelphia, Pennsylvania, United States, that consisted of brothers Taji "Taj Mahal" Goodman (born February 23, 1977) and Qu'ran "Q-Ball" Goodman (March 2
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe13b0939740a870a533af11416d1f3f4ea6b4d45c1847ce4d0ebff6eb6b3d4cb. 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/50f477c7-791f-4a41-ab16-6fac2218f0a3.json and https://artists.proofprofile.net/proofs/artist/50f477c7-791f-4a41-ab16-6fac2218f0a3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Somethin 4 da Youngsta's - Remix Version
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1e56c0c64dad4881bd6e39ab10b0e2761b67efbec17f6be16191491df6a854c. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/USEE10181507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a9e86995c15cd15d7960a41bde3c2431393c71435a9b597c9c75ce4525639b5. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T09:04:08Z), 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/USEE10181524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc001c185ef15e617bb82e2234125b46ed3184e9ded08a434789d19d93a5c3e04. 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/USEE10181529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbc5b2287ed5b2f71de5e0a9e12dde5b9d0de704e8b6056a598d46ba076e17f8. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/USEE10181530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bc2c0d405f7f3020265030a54ab11a157b4e2ce6fd427d90ab34bf3d62fa82f. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T10:50:12Z), 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/USEE10181550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dcc2709442641c6817a56d0868100f1546cafe20b674721510b01fbbc7489cd. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/USEE10181552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea1541a9c4886b7c3ccae06d5ab3426f8335e837d392b6610cac763102d1a7fd. Chain 2 (Bitcoin): anchored in block 958889 (2026-07-20T16:05:40Z), 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/USEE10181551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c06601fa27899b845fb6e1176bdde4c8005e72cdc7988b91da52cddd8bb805c. 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/USEE10181553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37b3ca0f161fa062b4fe85a4f8664e9df9e812dacaf2f9da52b37a17fe1dcb64. 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/USEE10181575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45e7b982e25d709209ee901070763c728d5f4c64cb2e2e3618d459de1b3ca04c. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T13:10:09Z), 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/USEE10181573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x576f65dd056b9bc7515602aca3c78a1152087319b5cf087e9b99efb7c53bdece. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:46:34Z), 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/USEE10181572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ceea9e11d46a7e42c2836573d8718c0ee45bb360a5cfe1b6e41774573811ecc. 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/USEE10181569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x861a35bfd6d2aa1fc0503817c0192424fd94a8ad4fd0fe93bd63fc143ea08296. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/USEE10181555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43e2074ae2dcbf60effcec40d6654093a4e3b7e9ce6902a34fa548d943381910. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T12:18:09Z), 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/DEQ022290334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc4f78bb5b02938962a4c91828e59bd4e834db6ab091c77eec5d3acd8c35c092. 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/DEQ022290335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9259b2c8a50c77439d5745149e958846e4efd4de1811a53dd12fcbc7e3341454. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/DEQ022290336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5de4789c5528a8694cce95626c4b12ac27d6b1fd6728ffeb25c9713aca14c318. Chain 2 (Bitcoin): anchored in block 958185 (2026-07-15T18:19:04Z), 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/DEQ022290339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3acf55075f8c795910b20e0b301ef1a0817ca5bc88b2f265bf339f191d94aa3. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T13:33:25Z), 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/DEQ022290342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fa1e3cc1e2f6ead8331719c4124230cffb6790080df8650be37aa5930f4ea6c. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T13:33:35Z), 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/DEQ022290343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc1209b6d99847040eac0c7336df0bf209e93d4fae6a29b8dd1ad796b7964ded. 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/TCAFC2036068.