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 0xf11bc65ce761579d55991c0e6c56a8982f0267f5ae32688506b19ab8deb1d2de. 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/0b541a2d-9d82-4d26-8070-e311133506b5.json and https://artists.proofprofile.net/proofs/artist/0b541a2d-9d82-4d26-8070-e311133506b5.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 0x3ca998f9c2c8dec33351bc4818caff2f80d0717367ffdd6ea8de9ff8105bf69f. 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/QM3DF2190684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6681c19a0f5c16214ca501ba545dc1abf33e26b537484a91ec0e0b060c34b3fb. 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/US3DF2206580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86bd7c4c43a09440e4a97f2ea2cb4d07f7f137c06f91a4886d73a2c6128bc632. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/QM3DF2279715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86bd7c4c43a09440e4a97f2ea2cb4d07f7f137c06f91a4886d73a2c6128bc632. Chain 2 (Bitcoin): anchored in block 958644 (2026-07-19T02:21:25Z), 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/QM3DF2279715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ea91c0424345c766094364aa3529455a070148fbb8717ca67a1df807368573a. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:46:10Z), 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/USANG2218958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ea91c0424345c766094364aa3529455a070148fbb8717ca67a1df807368573a. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T18:42:02Z), 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/USANG2218958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba0b51a0c524e2013d3e0fc40be9f4f22b434df63db5d4b70e20bb9f1b48f2e5. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:30:53Z), 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/QMANG2217476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb2cdfd0bf2f4c3ff662b6ccf49e0f67f37b95aa3474fe06975d9b49bd7bc376. 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/NLRD52251019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ec2c20e683243804161f11b6d2f7f606f6cd1b6d3bbc599d6a6a0b7088dc081. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-15T23:41:33Z), 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/BRTRB2301907.
Mega Aquariano Nato (DJ Lucas Marques Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5eb99d112ed27d2b1e74354925c9108e66435800c1ce2c6d0517094c75566802. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/QZK6P2444723.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b3628f6783f45da7200139cdcf6c89c03ff133a3b0aabbe235980a9e937d9a4. 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/QZK6P2444724.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5216dd65c4fa5dc86504f8ee99521c0f9c00efc7c4a7fd68909ecc4442067d9e. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/QZK6P2444726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e29a75c9b48a8a15a3db541b3e2ea8f5294c08040bfe41fccb457c665d9a1df. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/USCGH2595085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3ffad67e6643c6af26551d583ac5755dee32c50db1e2554dce3b23db23791fa. 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/USCGJ2577031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c7039c5d1902d8e42d0d46fa03996d826f9f1baaa0133c03c4a10bfef7bb2b0. 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/USL4R2411529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x669b3633e78aa9b4d0d62e8c635e351d3286e0b85e84ab652248d9441fac1f9f. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/USCGH2587756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40a70299bfdf6d3f13582f8f5192d5746388668aa476ec0a7e5c9aa6e011455c. 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/USCGH2513261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7420a1e9cb0ad4b0d6f356379a0e610d0d9a6e2a43f94af030ed327dfd36f6e1. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/USL4R2580163.