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 0x2beb25602b4728740335f381afa888863abc30df9d05331b3dc702f491041158. 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/a1b65fe9-02e2-4ebb-a123-a27cf08d4f7f.json and https://artists.proofprofile.net/proofs/artist/a1b65fe9-02e2-4ebb-a123-a27cf08d4f7f.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 0xc6c42d822ec0956d14f447be17e124990b4026aadf15724de5c137e7ec8c8341. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:18:04Z), 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/USANG2042740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93a95c02c0b5127d6b8abf33114675df9a0517fe07220ea7e16e048f905135d7. 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/USANG2042744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62adb8179e94154c276cb5a1455429c4fc47579a5468cf6652e436df515210b9. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/QZEQU2219861.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72c612d9c737655c9166e2cbb5cb02863101cd12775d4efcfab8dd3331574316. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/QZEQU2219862.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d1a8dc1155049cbdd355a1c7a0f06d52e4af61caad379f8e052e5642e20fafe. 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/QZEQU2219863.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb8b7430782e7313bccff7126ae144279e580b653e4f90c156976be87e787469. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:41:55Z), 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/QZEQU2219866.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c9edc01645258c54bd095d9678b80f8c3354f8dc6d00557f0ef45d9d576be25. 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/ESA112307810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b34b189369f77ad039b4e874be6a0b04b3e60d96a749bb360292bd5a6f82d79. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T14:58:12Z), 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/ESA112307811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71ccae35eec100a6cc5287afa2ada50bd2c43e4f350f00303392da8abeb719d7. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/ESA112307812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x818b86488e795906a4b609a49d4a347338e557dd795b4b909e800b15d3fde09e. 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/ESA112307813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc64c0bd2dab805423fa42b3cef5ad50d67caf49fc392f5bf7936b6322279875. 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/ESA112307814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8a6babd65222354ca195405a4c47efe4328a627beabe085c11429dcd71c3e1c. Chain 2 (Bitcoin): anchored in block 958667 (2026-07-19T05:04:54Z), 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/ESA112307815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4510690280528892caaba6d5dca63d147b4a5886bf201a45792393cbf7568af. Chain 2 (Bitcoin): anchored in block 958523 (2026-07-18T08:54:12Z), 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/ESA112307817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e5f778e9edbc1183637ea109ea62dfd080e36ad3ec2ca6bd85f0c5991626b24. 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/ESA112307818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0b199b6830e8519ca3f987770182a3c18b0a3ede1a6f2c18f2e39e0db04c4e6. Chain 2 (Bitcoin): anchored in block 958816 (2026-07-20T03:51:05Z), 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/ESA112307820.
Grupo Muganga (feat. Kauan Das Mugangas)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x301ef5379d63b891e8b3ebcb1b2ded9325a4ac4d66ae98b5dcbc2af8494dd413. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/ESA112318900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d126747af9069e163e94ed5d435c6b553d5a380c718ed40d5e8df36b778dd95. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T21:20:45Z), 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/ESA112435257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x230e4a7bf79561fc48ebeda9b78e0aeed9da0bd39e98b2614fc82a958bcb571a. 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/ESA112435250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55b02c851cf0b034a6c3832bd1f483f719b3c677a50030f07dfb351207680d43. 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/ESA112435251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5a07d3a2a6d3a1bc3619a5cc2a1d523ed1baae7c8930f781f3009e7d630bcc6. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T18:23:15Z), 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/ESA112435252.
Lamento de um Cavalo - A Vaquejada - Vida de Boi de Carro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16b1f0749ef7b456a95232f1dd7ea1d3dbfc5f82179ce75f9e676c196b3aa668. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/ESA112435253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b4021dc0746088d3f54aac8c92d5dd6dcb7015c740c2a1276663fb4b1956bb7. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T13:35:20Z), 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/ESA112435255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c2603ff2b3a9c3a7e1d92b5e6d48667e034b7ff8e02c171c4e4c4821d2cc228. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/BKWJV2400016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0963aed23d78bc6867e1009a392753ec30f32447c976deef5ddb3392c020b796. 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/BKWJV2400017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e1d8d34bb1d443dd274ad5a9303bfefbfeb5603db1a6474136a8b8e2d26f113. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T18:38:53Z), 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/QZW9M2446346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d17c0e6379f52e2f552c3247d896f0075985808502182de1fa3bbc52ec0facd. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/QZW9M2446347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x190bddf14d3ee4c99204f9445492eaca69a842b9ec38740da237fe129e4720e4. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/BKWJV2400019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95e2b90f3448516db03678538b2a367b7aa3a4633de2178e66f4fa3652a0a007. 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/QZW9M2446350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b0eeed3e1265e7a20a51a0b504a4abc11a766d86b4c33aefe7f30a2ad4c6054. 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/BKWJV2500001.