Queen Samantha was a 1970s disco artist produced by the Parisian musician Harry Chalkitis. Gloria Brooks, a singer from Chicago, was the lead vocalist on many of Chalkitis' recordings. All of the song
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 0xa8cf5419429a84f9226a309cc733db1f5ac2c2b80042de5c088dfa3e5bcb3482. Chain 2 (Bitcoin): anchored in block 953630 (2026-06-14T12:06:27Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2f4af374-122a-4821-b2dd-814c7ab6682f.json and https://artists.proofprofile.net/proofs/artist/2f4af374-122a-4821-b2dd-814c7ab6682f.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 0x3985e3c695d8062070a6d3231c5b93ee6ea20d64cd7661a9f3c37a0814b3598d. 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/FR6V80509981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e60f95b719b36a7ccb0d19a51d91e0bceedbaec186a394654c992e00803326d. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/FR6V80509982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68944dd6f46665f8e9586c841b18bdd6bef291fa2edc8d85458aec0915fd237a. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T01:56:08Z), 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/FR6V81561409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x261c15cfcae2588440b0abf7b6dd11f32bbde7fd7274ab578173a408b826a0c9. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T16:27:25Z), 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/FR6V81561393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8c35660b15b348f9b592276073698e00ba08c40fcc8a706008fd6da77cd9a7f. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/FR6V81561396.
The Best of Queen Samantha: Letter (Disco)