Debra Killings (born July 7, 1964) is an American singer and bass guitarist, notable for extensive session and background vocal work for LaFace Records and Rowdy Records-based artists such as TLC, Mon
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 0xc7f405e9a394851631ccff272ea02b859bcec9fb5c231e525c0d26de92716030. Chain 2 (Bitcoin): anchored in block 953636 (2026-06-14T13:03:42Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/367ce163-117a-47bf-af38-cc9f36971596.json and https://artists.proofprofile.net/proofs/artist/367ce163-117a-47bf-af38-cc9f36971596.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 0x0cb4a62f0d54b796034acfd3a876a29769a5678adb2964c8cc59b6dbc736436f. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T22:26:05Z), 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/USVE20300047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ac20461491ae9f45334f76e7e7baa76a99aa4e029f8ca5934378e683426c0ae. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/USVE20300048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x747a99cc831654e16cc9ff32cc0e22d73c4f2c0393e4673b1af91ccd15385a0e. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/USVE20300139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf03ce1d9f32f1247f8f21767b3c4afa6b543200b8bcd0fe169215b90c9ef0c9f. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/USVE20300144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x430e8940fc32c693f2f59ab8ce8001afb00222786e8d67a77f6487990c4db1b7. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T04:54:38Z), 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/USHM20857312.