Sons of Texas was an American rock band formed in McAllen, Texas in 2013. They released their debut album Baptized in the Rio Grande in 2015. History Sons of Texas was formed in McAllen, Texas in 20
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 0x400b695c1e92e3065c1d1da22d7b13af9d06759606f4ba15a6914fd421380b27. 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/90e43cc5-397c-42b6-9dbd-dc663ad8e16a.json and https://artists.proofprofile.net/proofs/artist/90e43cc5-397c-42b6-9dbd-dc663ad8e16a.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 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 0x18429fa2752d6289b23978b7991f5192af3fe7140bd1ae8cb1c6eb141af32b01. 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/USRZR1700289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1efd27bd9725b21179892bdd4b25713588cfad1d5e937ff9d331329c1ef8c11. 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/USRZR1700290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x719c9b0893dc3ad0fe8a18115326a7e55a91984336d131d2075efe5ecbadbd8b. 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/USRZR1700291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b4b389c64c62462ac59827ff8398330661798bb4b6401a2d6c626db95e52578. 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/USRZR1700292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a600a9a94d2a970997af7a5181398fecb42d18611a3c7fe05b49b772034ec28. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USRZR1700293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2eae6844d6066ad16b74a6aadf9f9f8e0cdb454fd05a1ab49b6f9c35858dc5ce. 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/USRZR1700294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93c259aab4c52e307eb8de9170d046f5f7c5d15172f810370e328f16b59bf28d. 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/USRZR1700295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ba1622a481546edee0a72de8ef7cf766b8f58b065b26238c0919485105b8bf4. 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/USRZR1700296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa818a846389c516676716221a8ba7e7f41f68d9c5cb587d17aacdbfc59e191f2. 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/USRZR1700297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa80bd63e0f4b90417074a7267fff3ce874e0baf4ae272812c5e6e9df4fe382a6. 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/USRZR1700298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6f15ef8cb1a624dfaa96a9ba6855a2fb0b8775fb64f5f7b5b21df8ee27f6d5d. 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/USRZR1700299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16fd9064d0744b6b7b700f44c4979b3a9480af56bf4b2e330386b225ddb436d4. 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/USRZR1460301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf190b97d95e9a03f499da15be74f575861d6c5820a15f1222a12d943c08bf659. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USRZR1460302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf526c9ab669790525c996a1b18b6134a4fc8fc52d6feb82e167c31a703da1e69. 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/USRZR1460303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9a11721526753b40f8fb5dbf94bda685d0ac55b60d14c596f29fc80d6024faa. 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/USRZR1460304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5798ea9f1419b62b786ec3c67ecb0a4aba525b9f75d85e18189caecb0bc0da2f. 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/USRZR1460305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e5bfca4fdd1c758274fbb4961ef54cd4ac50894823a1e0c7fce1d1872053edb. 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/USRZR1460306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19731e756a0a8baa3d942f2d1533a5f70d615708bbd57eeb93d4f7a2956b96e3. 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/USRZR1460307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21f11b352f373c8f97e19c206dfc1fbf8a1be2ff59bfb6cb03a7b15259d59b84. 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/USRZR1460308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f282282133d1975e5937552bfc8f4858b72c42f8d48fcb9195060f44022f036. 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/USRZR1460309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b8ba858714e6891b768f40eed55a32cb87f7deb1200a0811708934c6364b611. 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/USRZR1460310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6c63bc3008fb3a92c8eb10746843c329b3baa599155e4ca98c3cf40b9ec0f8b. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USRZR1460311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07b975bc954fcd6738d1875d334900cd1c323cf634beebde3b3fa54bb96a3c53. 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/TCAFA2083555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9052a5f4bb2aa7b80059d27fd7b8c7bf89a2fbd69bdfcdaee2efdb32bb75d516. 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/TCAFA2083559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b28f863cf02850d69c906f32e561ce759a0665875d9f0a9af020158fa48f6b7. 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/TCAFA2083565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9505dd6e7447306b05e5eef8eec2fc3c81598c541db8d43b6b33ff57187e447e. 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/TCAET2031705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef68d852fb266fa61048d74b6922a835dd9b91e43d1c1f795e14515ab5c234d0. 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/TCAEM1918346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb473442d8b9e44f7477a836492d9bababced38c5da1148779d1063f05ef8a4d5. 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/TCAEM1918345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x329445a4fdea25d82b97659b6a63f8438232ad63cf832ccf8bcded5c0c852705. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/TCAEM1918350.