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 0xbfa72439a87bc8b2db4f4ad28503c0c44fc9820d19a5377f3f77343e116cc9bf. Chain 2 (Bitcoin): anchored in block 953657 (2026-06-14T16:43:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4f0073dc-7dce-430b-a884-4b278b439a20.json and https://artists.proofprofile.net/proofs/artist/4f0073dc-7dce-430b-a884-4b278b439a20.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 0x541cc043115fecc553bb5c2cf89d30133b0c1d0308ab2448e170de98b9a29c32. 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/QZHNC1981195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13bdb05d988c402d9be6cd2c78388f58fb03bd25f023ccf835b17507b87021c7. 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/QZK6K2109206.
Africa (I'm So Grateful) A,M Version [Radio Edit]
Africa (I'm So Grateful) Nations [Radio Edit]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a966cd1a72a51fb6f98b14a6e25136b6b3082ab099fcf864d052cf51aebb1a7. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T07:18:47Z), 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/QT3EY2410100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fe4c47e740fdf86cf5604bb092cbefdc102df7bf6852ef1370a691e5eea8187. 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/QT3F42429309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cd30e646bc5074fcb61a1f055bd998aa45af1ac83b85d9aaf6bf6247aae3c24. 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/QZFZ62544594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44a742598c13a45130778a297847c0c56d4e7b4943bf13d2847cf59323d4b63c. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T19:16:52Z), 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/QZHN52532018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x037adb0f6260e06ed83c608d941ef370187b6ce216760248ffbf2c70109d5ca3. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T06:58:20Z), 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/QZNWR2518285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5633c86df15dfe08675329543cc2bc87c28294bcee988403987c487f3bd03f42. Chain 2 (Bitcoin): anchored in block 958384 (2026-07-17T08:27:02Z), 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/QZTB22546530.