Carol Hall (April 3, 1936 – October 11, 2018) was an American composer and lyricist.King, Larry L. The Whorehouse Papers. New York: Viking Press, 1982. She was best known for composing the music an
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6e5ab6d513ae976c12458196db33d04cf8121ed0df0b46c39a23f207523739f. Chain 2 (Bitcoin): anchored in block 953791 (2026-06-15T13:40:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/de52a95e-4c56-4009-bca1-8f667b483999.json and https://artists.proofprofile.net/proofs/artist/de52a95e-4c56-4009-bca1-8f667b483999.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Iphigénie en Tauride / Act 1: Introduction et choeur. "Grands Dieux ! soyez-nous secouables"
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x311001f1c78234c87240986bc5592e9a6e0406562b336106a6740639e97d79f7. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508401501 — a six-check JSON result.
Concert: "Saul, Saul, was verfolgst du mich?" (SWV 415)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b287ce13772f9d0bc2ee068d9f091ff36c080f69a310345610c36b7a3e91524. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058703270 — a six-check JSON result.
King Arthur, or The British Worthy (1691) / Act 2: Come follow, follow, follow me (Philidel)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb47559482e53f1b3b3112f5feb19ce47374d6ddb267390e0b2f5984a72902308. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059130315 — a six-check JSON result.
King Arthur, or The British Worthy (1691) / Act 4: Passacaglia - "How happy the lover" - Ritornello - "For love ev'ry creature" - "No joys are above" - "In vain are our graces" - "Then use th
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06ad7c3aa71fe028cc89ca7f13e17d1ea56f9aa9324d88274f27a4ea21002961. Chain 2 (Bitcoin): anchored in block 960187 (2026-07-30T01:34:28Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059130331 — a six-check JSON result.