Ann Hood (born December 9, 1956) is an American novelist and short story writer; she has also written nonfiction. She is the author of fourteen novels, four memoirs, a short story collection, a ten-bo
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 0xe20620c13d822119211a8399759fc6e3c08024a14d8ebaec6b3458c5e32ab448. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5b3d6041-b0a4-4d39-af4c-816b467c6c8a.json and https://artists.proofprofile.net/proofs/artist/5b3d6041-b0a4-4d39-af4c-816b467c6c8a.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
The Sorcerer / Act 1: 16. Now to the banquet we press
Gilbert & Sullivan: The Sorcerer / The Zoo
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 0xf880fe4b97e8345b4cb98bcda25ae5ccb9ed957514710cad2ac95dd581313ed4. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF076641517 — a six-check JSON result.
The Sorcerer / Act 1: 2. Constance, my daughter
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9a20e579497e7ee670afd6166998d1a1e3d27206d6a65deddf287f8d082a4a6. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF076641503 — a six-check JSON result.
The Sorcerer / Act 1: 3. When he is here, I sigh with pleasure
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe17abdddceae4f4afecb15ea89aadc2152751a4cb017426b914ac9507d1e1603. 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/GBF076641504 — a six-check JSON result.
The Sorcerer / Act 2: 18. Dear friends, take pity on my lot
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cf231e7d3b588401b6ff04f52999214550f0c4b8db04004e4727d20f78d0e99. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF076641519 — a six-check JSON result.
The Sorcerer / Act 2: 26. Or he or I must die
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa89fc69230119982942114e0e13e702dc7b6d5cce97a5f2a9e3e621c1cce2b3c. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF076641527 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52ffa77ae055aa21442d21accd20a76470baf113b948d653d1bcfa502785e3a3. 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/GBF076440202 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18a9af7e1879c2bd407a456c5b908c75c5c0414b97cfd9c36e2293ea094c9304. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF076542015 — a six-check JSON result.
Gilbert & Sullivan: Princess Ida / Pineapple Poll
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd51e40960675adce5f85cda632915c198aa9592d0b81d317378deb8ae75cfa34. 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/GBF076542008 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3917e0a065403416588be2138b2bed92cdbdd3282d179f58bb5aae83832d9e3. 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/GBF076542014 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18a9af7e1879c2bd407a456c5b908c75c5c0414b97cfd9c36e2293ea094c9304. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF076542015 — a six-check JSON result.
19. We may remark, tho' nothing can dismay us
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x454ad2f53eb681cee8eac7d2265be2a24a0ef3e903777a1d3bd89e47df9dabf9. 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/GBF076542020 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab7a6b3b9529196a30b50fbe6c724916dd0dc06715e7530a9e35828dd18987d9. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/GBF076542027 — a six-check JSON result.