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 0x72b795786700f4ea31cb17ef197fc44e05635a40837a4f88d91c5d362cdb1978. 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/8f0124f2-75f8-48b3-a86d-f6772fd9b482.json and https://artists.proofprofile.net/proofs/artist/8f0124f2-75f8-48b3-a86d-f6772fd9b482.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 0x3f9898c6f27c5a40de1d249233ec6ce61076963bdfce6299eb743acdbba0400f. 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/BXPOB2000026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96cd12747e1fa109ddb4d151fd5594858fcb61b8b96b2c85ec7c4214507bbf1d. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/BX6Y62300043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xada23ff71030b014a988d646983ff6bfcdac121d4fb7c4741aed67736996a61c. 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/QZ5FN2387341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x019a5151cd2b9f00d0b67b5e4437a89635aaff89c2e4bf2fdfac3da06b916e25. 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/QZTRX2281599.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90465a65fd8c779f4d46a52d1d5e3e7dafb4f9144143263f3539b707efb3e157. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/QZTRX2245633.
Amor e Fé (feat. Phantom Mob & Caju Clã)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a011be6c6ad27d07a70289a2123b4dc31a230eec7e5df28438c986864a5593c. 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/BCXVW2200014.
Maldade das Ruas (feat. Did Brock, Murillo Zenki, Phantom Mob & Caju Clã)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1080c344bfdf7dddac1397fcb3a73fcef586d3aaa18d7370ab864af374ac101d. 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/BCXVW2200020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedc391b75beaf562f15fbc700531f3c32aac65bdec58f9617d9240b725bb3303. 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/BCSIU2200248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb28209f405b714590ccf5ebbb305e4fde65eb562cbc41b161ec8f654f9351307. Chain 2 (Bitcoin): anchored in block 957020 (2026-07-07T09:18:01Z), 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/QZNJV2137914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad8abd5216fefe78741425fff989114d0229d14957f0e1c8b7d1d6769d1885d6. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/GBRKQ2181291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2eea4bb5ef926a3d1bc133d716aa17b9e4f502751e56e58c0a140b849496544a. 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/BCUDJ2100004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2c4e112abaa3022c687715edbfa41dcb6f27e5c7d7504d48f6ffa248628d7cb. 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/QZGLM2109496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16b5afd6a19a219554d5d7f842767ce3b6257bbd14156b5160aecee2a40177de. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/BCE0V2200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3823dc0ec80bc0d2785569a118c5a30505fac71e3d85bfe0a8fb191b9290778e. 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/QZNJW2094955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03c37111c53d611f80f33dd3d4e5a0bbd2bcab7ac5d4839888594727e71d7e93. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/BX56X2400064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb482a62b465f7d978fd822d315b61fb5c642d19b8d9ded1c3affe1843a7f29c. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZNJX2083035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4368f64a32c56bf63c1061405ae44c655bf52f3f04802f04bc3a2b4871c9df6. 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/QZNJX2020015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f9e9d320e0623126828e77b942844b1d82e1f967db014a3a797e9d5f46dde68. 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/QZHZ52093070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x653121b4294436a8b6236fb45aa98c4262ac75239c34bc783df8dea6f06f6c60. 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/QZHZ52012993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9b16ca5a3a573ea5f258f8e2bd0e7f2b062316ba0d56dad05574e0872b38c48. 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/BXIV82046676.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe20e77593c93b9545a6cf099ca90109fa6b3ba3d1f3a32305241161d5cffd5d. 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/QZHZ32066702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44ab39d3b61eeeae16637cb73f6410ffe7ff1c469e8aca87cad6c1f100bdf692. 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/QZHZ32036600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ec643a4d55902f3e35dd3f70adf122a6ade9bbfb468a22df1870cd443b2b747. 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/QZGLS2028360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe058e8a1a44aee8bea4ffe579f2035cecf4b00be07703fe6630373c7c8070ab5. 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/QZHZ31925017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a0e6c671f02f855dc80ea0f761650cf4e9acdb88e43b8316574fea1b7e51f2a. 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/BXPOB2000036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f9898c6f27c5a40de1d249233ec6ce61076963bdfce6299eb743acdbba0400f. Chain 2 (Bitcoin): anchored in block 957043 (2026-07-07T13:52:39Z), 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/BXPOB2000026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5170a791c633d41cf896973ee3cf117bf2a9a18bd25a7ad9daa53e898bfe5b0a. 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/QZHZ42196581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65b725c8f5ed90f8092bf9517afb4fdcb453c37a0437e936910e3e6860a284e2. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZHZ62062852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a84f28492596cd6c8a4420a66339b51dd9d88cfb13d7bbc3bbcceb1607b1a5e. 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/BX2HU2300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcd17d0901cb13a4f17e0834e976a8193215a1577e54291c828f923ea627cebf. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZMZ92084616.