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 0x4e772fe9115d5979a5ad2a587fcaba0a4b138c1ac497d8c14504ab620c61f566. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b5583fb7-dff3-4c4b-be4f-c9a77400b58b.json and https://artists.proofprofile.net/proofs/artist/b5583fb7-dff3-4c4b-be4f-c9a77400b58b.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 0x7290765ba528cbc37b570a473ae4de961b1ec04f6ae2f4060cc69b20b440a6ba. Chain 2 (Bitcoin): anchored in block 957608 (2026-07-11T21:00:50Z), 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/BREMI6300034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc245fd89d694d78bcbcffdf49539a9e2a2647298da85ea5ae390ecf051e77d14. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/BREMI6300035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x795f35bfbcd08d9f141c1af0d849061348f6deb9d665f3c213f83179776e2943. 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/BREMI6300036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6feb5b6a949ac85c812a221ede59fb4126482dabe5bfd3725f383c7c8ba76d9f. Chain 2 (Bitcoin): anchored in block 958585 (2026-07-18T17:05:16Z), 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/QM4TW1502555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5ea84aaa185616a4032f758eb8b7e55ea82a58472b77266f1fce2d42d2f40fc. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:24:58Z), 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/QM4TW1502556.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa10775537daaee1172d1e16b8d2f023a9b33f6753b9e6f3c6e1cef0ad2bbd088. 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/BREMI6200018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a1bf55c78dd7386a87c5ecb8edcce371a9b80cd97f0d40b736677e1478e4c71. 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/BREMI6300045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7290765ba528cbc37b570a473ae4de961b1ec04f6ae2f4060cc69b20b440a6ba. Chain 2 (Bitcoin): anchored in block 958673 (2026-07-19T05:38:28Z), 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/BREMI6300034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b69a5a5b2c0765b960823a2a30b1b2e7e4ccde788c8ffd534a23aa63cdf7e68. Chain 2 (Bitcoin): anchored in block 958691 (2026-07-19T07:19:31Z), 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/BREMI6300226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd65d8fbe2f12de5131a8f8472e9fa85196ad34f9aee67a2c9e1d5a997cbe98b3. Chain 2 (Bitcoin): anchored in block 958945 (2026-07-21T02:30:49Z), 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/BREMI7500552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x836d9067f3b113af31267fd9a9ddf2a01b193f4529b13f4cbffadd374c14fb00. Chain 2 (Bitcoin): anchored in block 959065 (2026-07-22T00:36:31Z), 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/BREMI9800433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef917cda13d8d5522e4dac26cef3ca645342652f9fbff7eb082b760264a85475. Chain 2 (Bitcoin): anchored in block 958756 (2026-07-19T19:03:59Z), 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/BREMI7500412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe326648b9007b829c9c8c20c35dab724616993ccb580ee45c7d4ca1f53a903ef. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:40:57Z), 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/BREMI7500406.
Poema De Ternura - (Non Ho L' Eta Per Amarti)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80a74985698db9a53edd920fc7e4c0e514499c71e45e3bb46ed0ff592319807c. 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/BREMI7500405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d41ecc16588175736d14621a2edb2457a2ce3bb35966c5994c09556f9276d57. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/BREMI8100646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43dd5bab83984590e5e6cf837f05e428dc21a330d925379cc8785857089d9017. 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/BREMI7000145.
Amor O Tempo E O Mundo - (We Have All The Time In The World)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d720df88e45dd477b1e40eb6a4bd913bf531936656b3a3ceb3a84722df2acf0. 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/BREMI7500413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf384674b94ffaeb26fe13d8a9a4001d0b967303cc6b2c61f4a70c6965449df65. 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/BREMI7500414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50e713197f06084eadebc23abfb05c0c3d9d6d3f874cb8427f4496f27162d88d. 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/BRBMG6500169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2900083c887a19b85ce803bac83a78bcb6766f4fd222994f31ad7ae69d1f33ed. 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/BRBMG6600017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa46aa36f8606b1ab4dd8ed856239020348b77aae120c9209737cde1c69af6fe. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T16:19:28Z), 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/BR90B2001955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4166f8ad1e475c5428b6494507e37e60ba705230a307a0d908a9a2440726693d. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:04:27Z), 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/USL4R2068254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd35f29dbf941da4bf53e1052effd7a995580e60034e1353063a964c5e449e9f7. Chain 2 (Bitcoin): anchored in block 958392 (2026-07-17T09:46:31Z), 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/USL4R2090532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5256dcf47e50bd88eb0aec03f6a505c851cb65782bd8f177335838e60b1825e. Chain 2 (Bitcoin): anchored in block 959071 (2026-07-22T01:21:48Z), 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/USL4R2090541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dcffa7d1f54e60a14dcb4bd8efa890f96a8d20aed9e2bea3a6448856e1e2759. Chain 2 (Bitcoin): anchored in block 957616 (2026-07-11T21:52:36Z), 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/USL4R2070338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0572ab8623a168a709d0c6cbb61be5ede32f08f6b4f9cc6585dbb08465491386. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/USL4R2068419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x522171661f6dac972f299ce6b5fe821a5ccee716029531c193c212a28d1cc2ee. 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/USL4R2068424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49b3fbaddd1416b2ddc0d15b866724688d2aff82971b8203ff654c38a7027908. 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/USL4R2068426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc91e9df04141bbd34e99bd9f358b20756aef1613fe7e1fca72d82c8a3887ff36. 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/USL4R2098157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbb19683683eec65b266f1c95830ae153be574d92677a39ded62e6e858f38ec0. 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/USL4R2068215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7804315ac0eb3a870971aad7064e0b14bc686170352bbe7669bcfb1e37f9cbc3. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T03:00:06Z), 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/USL4R2068416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25c05d3d1064303138a690a1b7fd1952dd3e5603a20cdfbad52bb3ff2d38727c. 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/USL4R2068393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0acf8e232502035b1df6d0991369f6b3492044b1a98818cbc3dc028fa578efac. Chain 2 (Bitcoin): anchored in block 959084 (2026-07-22T00:50:00Z), 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/USL4R2068394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x089562a462a8938b96e44245326e9cd9f2329099d91143aad70b8da49df94dc6. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/USL4R2068395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ca027972debceda6a4bd0815fb02d21333419ead24b1f83ec14878b4dece1d4. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/USL4R2068397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee9969b4c8719193f2e84a81fdd7766f5c327927773f828dc08c59f709b8f23f. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/USL4R2068398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc469076a455f813f2d811d96cd0a5a9ff6456c60c7dc0bc4a8a27eebef29236d. 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/USL4R2068400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32c2b0e3f8971867d494987a67e4896f9c217af1def335b5e9124cc0b12b681a. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/USL4R2068401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x063683d5b29c9ff16488de172b83dced1930a7a200b7fc9200dd506e1d8e15d3. Chain 2 (Bitcoin): anchored in block 957616 (2026-07-11T21:52:36Z), 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/USL4R2068402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x180613beb55c5bf719ee6e461ea7ae96e262e709a32c9ef430f94416ceb59301. 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/USL4R2071872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb52e87d56d66f126babedf63915f82a0d6fd6db70120a0ef89273756f69d2f40. 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/USL4R2092731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0480fbb05512f327cdc3d7ff128955e58f86061dd991995b45b6b929c80d10d1. 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/USL4R2068335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb392696d945635f3e473e75aca6250d37028a32fd06fa85343004804323b56d. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/USL4R2068337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde82e8e88520631986fee905a7035056594adc499c6f0575a970e78b56b58a6c. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/BXNNY1700035.
Dia de visita (Participação especial de Moacyr Franco)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x209f2f6849a807f4a53cd19b12116d23c7d21354a59fb18ba375e1edb576ffab. 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/BRWMB0500492.
Prelúdio Pra Ninar Gente Grande (Menino Passarinho) - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x986c28bf3899752db4dd3c6f96667d9a6abb46cd5edba881a8adec723c554580. 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/BRKUA1800178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e6f5bf3e732b3b3a17613aa61193c96d0679103848179bc9ad68ff1c2eb97dc. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/BRBMG8200441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1540b30c839da0bef84f091163cb20dc579b6570723557e3003a0a655177d63. 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/QM6P41489535.
Assis Ângelo Apresenta Inéditas de Capitão Furtado e Téo Azevedo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7db492f3704f1988302ef99d7be0585ea6f103bcd6f45ade14629d3a28a0e627. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/FR6V82059237.
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 0xf625f0c1466581e0405c7f92ae5e1bf6ce75cbb47cfa77318b0d7050e11560ae. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/BREMI6700083.