Katherine Baldwin (born May 2, 1975)https://familysearch.org/pal:/MM9.1.1/KK8Y-DKL Date of birth, familysearch.org; accessed May 31, 2014. is an American singer and actress known for her work in music
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 0xf4d2ca63c09c1f1c9fe4e6494f6c451aee1121264dda94b2d17a73e6a2ef80b6. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f6c55dac-9e0b-47f9-981d-bf78d0c6d4ac.json and https://artists.proofprofile.net/proofs/artist/f6c55dac-9e0b-47f9-981d-bf78d0c6d4ac.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
John & Jen (2015 Off-Broadway Cast Recording)
Big Fish (Original Broadway Cast Recording)
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 0x49f576309b799232e0ea6495ec37faf7fddfa907a5d3415ed0a714c5cbec6f86. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QMQYB1402505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x194311e643c6378eeef8123f01af59a5268bda7d4d3d43da9d41d0b251e6f3a0. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QMQYB1402507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cfe1664929e7b9c539941a9509d43015634a20bfd64794ee45672fe64966cee. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMQYB1402508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37b9403a467e6483795938ad00cab9f9cd86c5dd1f5e58abbed0aa4289a9cc94. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QMQYB1402510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3759c05fb056725ec99bc606f09cb8b21f9e396394bde9d6ee958e369829062. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QMQYB1402511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92a9a95e83f24bf9a410625a1b74a4613ed481b4a96b7f76e945da70615ce811. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QMQYB1402514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bc07a35b0f36f6d2a6241a4e7a40c61b658d0090d295822d6830ef94aaf0496. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QMQYB1402521.
(Sorta) Love Songs: The Songs Of Scott Burkell And Paul Loesel
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd0084c5ae25904cc0edf9a9044577f21a06e99b34f2639a25e93395c848510c. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/USSK31053881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47349a33ae038e1c5b189ac67c1fd76f979417a77e4b16655993086d1e152a3b. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/GBRKQ2409536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x767d568de364b2f26e66d280e01a9eac8869be62ffa224252b973cf16f0db2f0. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBRKQ2409543.
Thirteen Stories Down: The Songs Of Jonathan Reid Gealt
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x217b9ebb4dcf92dd8d49c47bc274b3f276f0c55af1e05141c3630bf502e54c9d. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/USSK31058508.