Lyman Frank Baum (; May 15, 1856 – May 6, 1919) was an American author best known for his children's fantasy books, particularly The Wonderful Wizard of Oz, part of a series. In addition to the 14 Oz
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 0x69611a2205622c54c8c2aab0676c9bf26df4595aac95030c9ebca044556edd13. Chain 2 (Bitcoin): anchored in block 953772 (2026-06-15T10:33:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c40026ac-a638-4900-b354-f65a72813d0e.json and https://artists.proofprofile.net/proofs/artist/c40026ac-a638-4900-b354-f65a72813d0e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
B. J. Harrison Reads The Life and Adventures of Santa Claus
B. J. Harrison Reads A Kidnapped Santa Claus
Der Zauberer von Oz (Moderne Klassiker als HörAbenteuer)
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 0xe56a2a58932c374ac936bb1d36fa77374e54258ef7a5a11fac719f63d4e13c29. Chain 2 (Bitcoin): anchored in block 958992 (2026-07-21T12:09:22Z), 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/DEWM52434127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36564b59a285e157f025da578f9a718b7e8ed2ac7a3a8446d0f1f1963c36f338. 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/DEWM52434130.
Dorothy and the Wizard in Oz (unabridged)
The Enchanted Island of Yew (unabridged)
De wonderbaarlijke Tovenaar van Oz [De kronieken van Oz, Deel 1 (Onverkort)]
Oz: The Complete Collection (All 14 Audiobooks)
Christmas Stories by L. Frank Baum (The Life and Adventures of Santa Claus, A Kidnapped Santa Claus, Little Bun Rabbit)