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 0x6dd939065d55cd69392f198cb6e397cb0dfea2bde07f6c6bffea240db9537017. 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/3143a726-1c14-41e6-b95c-5017966b9ecb.json and https://artists.proofprofile.net/proofs/artist/3143a726-1c14-41e6-b95c-5017966b9ecb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Lembra de Mim / Doralice / Marina - Instrumental
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 0x1d5a54def890c5640d74fb0521002c3ba4d26c47cedba046b701dd94cd92f16f. 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/BXJGB1500221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0733bbb40a0ebd41e47b0e4bd54dc87592c5eb24a234ca616f95bd795a13ab06. 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/BXJGB1500239.
Só Tinha Que Ser Com Você - Instrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc22621a35800f0812ee0645db7dcf373a1f887745a100e70d22e8c78e2759781. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/BXJGB1500241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a156edf1cf93d1c3fde091c1bf252ff7596b8f74533350c7330ea55021edabc. 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/BXJGB1500242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43e4da9b07e40e3d5ff622c755d6edb2dca50fd08583f3fffa17e598c4ed54f6. 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/BXJGB1500243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x625b623f6e992d30d9b776dfadfe7174abf49079a83f54cb4dd8c9da115b927a. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/BXJGB1500244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c88a1d80d10570cbe47ded6120876e7fba8d2d135644873dad7f83996f58aea. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:35:54Z), 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/BXJGB1500245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef1da632dbe6bc71d28294f92e72b1f731ee80c0eb44a943bebb4b00888575f8. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/BXJGB1500246.
Se Todos Fossem Iguais a Você - Instrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcb6512d8824a2c9b7dc95bfab61ee20e808fca2136ca9c38511ab742137c2fa. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:43:49Z), 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/BXJGB1500247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc20f5f13c379400018cc2c8117b8f4b349ae7d9540d343ae245589e2f8363ca. 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/BXJGB1500248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x246f9bba0542ba19ee0d0f9aa21a16af5173240a012ede4225fb6397c23d8495. 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/BXJGB1500229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd92db4e13a2267b84cfd0ad987bd959c6e3a6c859579d9c5ea8885c457ca42ba. 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/BXJGB1500232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a54398aa32a3f52fa587e5adb679942409032308a0aac4962fc6ffe4c4db1df. 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/BXJGB1500376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x417da30ac3db6777dbbd83b4769d741b5465764dd891981b52f3ad6f81d74100. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:39:50Z), 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/BXJGB1600393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95d6a0bb7cd64a1a1b0e773a7ee91e4bb2f02d7d5a4e01e8e4964083c889f689. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/BXJGB1600394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbf2988d4abbe0a3e8195f61b34eeec1dc508ba217aeb5629e7ff5b7eb8b025d. 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/BXJGB1600395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc0a01b62285b34a3655eb007b72e1710d7778e749ed61c322a3961b10f97e69. 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/BXJGB1600396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40f8495ecb6624f84b6ecd8c23f6a01ecb48e6005134a335a273ddc17c590ab2. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/BXJGB1600397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fa17b057b25d2fcc53f7df9850af7098d665bbe325d0bc66e52438b4919f0a8. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/BXJGB1600398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x190ba348b35342df3d3e110110ba768adc3cdb21044b22497c3acda97f32d9ca. 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/BXJGB1600399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed14f45ebbbe2a8085b3e9b31c7564dc4c7c1fac304f0ac7781d1ac46f2b4849. 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/BXJGB1600400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69fa41fb71d45eac3b1cec36a710a50f54b1e56f165c3617d8585e49470d40b1. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T17:50:38Z), 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/BXJGB1600401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea52b3226a9f8034cbe383a440f0f06bd24251e8895cc7713e0debd04a5e5da5. 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/BXJGB1600402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5425ee1637fea8850b328ff1ba6a604502e25c808e9d548384febf7fe17b2ec. 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/BXJGB1600403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73de957d00fcc4d1a65bfa8331a8210448bc45dab916f606c3b6e35045ccb5ce. 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/BXJGB1600382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x703292e7a9716ee162f2cee25330d80f4c41aba168e6c854319a3b97246a701d. 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/BXJGB1600384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b14606bbeb28df31c57a4b8223ad72b950e3fa94335cde3ff1817668d733617. 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/BXJGB1600385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52e545efbfb1a58c56beb1e29695c0b93ce9c43a7a0b4180bc298f6665287eb6. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:50:04Z), 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/BXJGB1600386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d6cde1f1eba281a3d84eb80d4aa46fcbcd79cf1ac13d34d4715e305106f8ce6. 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/BXJGB1600389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dbb8566e19afa2aed018a6e5fd653d570cd274d207f4f37b00e407ffdc8946d. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/BXJGB1600390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37f4a9d194215a9dfdd41010df4cbc7ddc7dea6134e249830a3c039fe4bff94d. 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/BXJGB1600391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd964697f0421bf6c5c6987ee65e32d0089e367cef1284d00512897ace5bb032. 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/BXJGB1600392.
A Canoa Virou / Escravos de Jó - Instrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cb656f318a1ad8f810986e0a614f648877d50048c28b01684b77f26aa4f0abf. 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/BXJGB1600470.
Alecrim Dourado / O Cravo Brigou Com a Rosa - Instrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6d1c2f50e9b940c265b06056d20f2ed5208cd960450aecf2e0ce8b66564ba9c. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T22:07:59Z), 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/BXJGB1600471.