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 0x0936fe89e3b6b2746d660fc2d70989e3bd0bf9b07a06c677ed09b58dbc947446. Chain 2 (Bitcoin): anchored in block 953827 (2026-06-15T19:59:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e852f850-3bdf-4e30-87b8-b78db9d611da.json and https://artists.proofprofile.net/proofs/artist/e852f850-3bdf-4e30-87b8-b78db9d611da.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 0x0b4d7ac3b50450f880256e6cb5447080b6904fc4a028d9b3fe51efbb00b6f8c7. 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/UK3AZ1818607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8db3d9f596aec9d1558e11523e4e981368ebb744755f21ed01a176358a4c9283. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/QZ8LD1995304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25f7dbe8c04b126751b99f19cb887ee26a50a07bf5611cd8bcee7297c16f5909. 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/QZHN41916911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03b1c0964b8bc680ce7d2851611d2f021b15041677bb14223cc47b1771b027a5. 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/QZHN52081405.
Today Na My Baiday (Say No To Drugs Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x212034d50b522d38dd0bf1208d91e204f541adba01cc683bc781bcf2b2788821. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T07:22:47Z), 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/QZTBA2281161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7724ab92c5ad9e85a42c6eaa3509da7d611f94985c9604073c262e5c18e519c9. Chain 2 (Bitcoin): anchored in block 958204 (2026-07-16T00:27:18Z), 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/QZES82400545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d4fbba0732f612ce83caafc83f9f03608ca1df08f8beeb7221de994522588bf. 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/QZNWY2572681.
I Fit Be Brown (Mika’s “Grace Kelly” Naija Pidgin Version)
Rubber Heart (Naija pidgin cover of “Elastic Jeart”)