Gillian Howard Welch (; born October 2, 1967) is an American singer-songwriter who performs with guitarist David Rawlings. Their spare, often dark sound, which The New Yorker calls "at once innovative
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 0xb07e6a06c9809bf59bce4c88b2555dc73354adfc62f4ce06be2053a28f6f7554. 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/494cb2a0-a6f1-4771-a088-1009c5155085.json and https://artists.proofprofile.net/proofs/artist/494cb2a0-a6f1-4771-a088-1009c5155085.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0x82a99fdab24716dd5380c4494308a0bac9a2ae3d41108ae89fc9892461af89dd. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/US2AR0130501.
Something Borrowed, Something New: A Tribute to John Anderson
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4adda293c07d946f2cbee59968e694f07300a8ffb0382c1641d4f4b1f6884793. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USC4R2212390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf379f37f56ba60826d6a7585c3955cfc65fe1bb89e4f5e65ff6b9bb9f14e46d4. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/USMC19701131.
Loretta - Live From The Ryman Auditorium, Nashville/2004
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcef61deb2af95838a98293a0fd098c74e022a1e6dd1fc086ae4fd64a0fb76e5e. 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/USBN20400747.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38d8b8f0ddd9943b16000a4d39b02a777d1d0d54afe2e44b777b192ba7f1e285. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUG12003957.
I'll Fly Away - From “O Brother, Where Art Thou” Soundtrack
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5b0369b02882ea827c27ee09635a23fffd507f914adc12d625bcc7fd6279e11. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USMR10000052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5b0369b02882ea827c27ee09635a23fffd507f914adc12d625bcc7fd6279e11. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USMR10000052.
100 Greatest Country: The Best Hits from Nashville And Beyond
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82a99fdab24716dd5380c4494308a0bac9a2ae3d41108ae89fc9892461af89dd. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/US2AR0130501.
Dark Was The Night (Red Hot Compilation)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x419e0abb75cd78ca689c8dffb95d6ced48ed41eceee274cbb915b2f87b1e022d. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/GBAFL0800197.
The Bridge School Concerts 25th Anniversary Edition
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69ead20ab328e2f7eab90eb1790918698ab9a3f2e51ea8008bc6110478f3a291. 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/USZTD1100009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2f06a1f9b86ad01a932e2aa955d1343223048b588c9174fd33bd6b1fbcd92a5. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/US37G0401723.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x956686ac57645bf7d7d75e2cc688b0eeb8a51c60f20a80c0d8246aa3741bddd8. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US2AR1110904.