Texas Anna Gladden ( Smith, March 14, 1895 – May 23, 1966) Virginia Department of Health; Richmond, Virginia; Virginia Deaths, 1912-2014, 1885-96, at Ancestry,com. Retrieved 5 December 2019] was an Am
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 0x23d091383e8e8e5dffae7a760b7cfa3f18b53732119964ee2151ea1d84e3add0. Chain 2 (Bitcoin): anchored in block 954047 (2026-06-17T04:56:08Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/420d6c5b-5a87-4337-b344-2fb11c947ab1.json and https://artists.proofprofile.net/proofs/artist/420d6c5b-5a87-4337-b344-2fb11c947ab1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Portraits: Texas Gladden, "Ballad Legacy" - The Alan Lomax Collection
Wave the Ocean, Wave the Sea: Alan Lomax's "Southern Journey," 1959–1960
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 0x12889ebb7cc79f64ddb26b956294630cde123ed839fd2a2f40f28cbde1d12019. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USVX41000002.
I'll Be So Glad When the Sun Goes Down: Alan Lomax’s "Southern Journey," 1959–1960
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa27172ecae44d2d287946035d3ed35642b68cbdd5461853600a09f1f28f69bf5. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USVX41000056.
Whole Heap of Little Horses - Remastered
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ce81052074d2b6b3e6dddac71383c09f845959ff1bd63dbc378994154a7bb0c. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USVX41000009.