Katie Webster (January 11, 1936 – September 5, 1999), born Kathryn Jewel Thorne, was an American boogie-woogie pianist. Career Webster was initially best known as a session musician behind Louisiana
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 0x4ce9da87a640fdb0e4ef8be080dd5422e4ac6cb26824bb9b0416444d1b088b8d. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c5c78993-cee8-4b8b-b8eb-7751fbb7ed16.json and https://artists.proofprofile.net/proofs/artist/c5c78993-cee8-4b8b-b8eb-7751fbb7ed16.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd89cb88045ef8e726a3fc57511c649dde5ca27f5f45c2437659b3eca6d887c30. Chain 2 (Bitcoin): anchored in block 957620 (2026-07-11T22:32:56Z), 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/USARL8876601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4e776413b8257f97e25d445bc4ef3bd04068aa16aa43326d8dbd894e98dafe2. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/USARL8876604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21c9d05edbbd74cf2bf51ea49085ce27489bb2b9ca57356ffb97af84dce27d89. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/USARL8876606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb0db37720376bc51163dfc2815e1c6c1821f3d16d6bb004a3ed61cddae35503. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:31:19Z), 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/USARL8876611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fd8442aa60fbe797f7be43bc6435cf79a0e4e06b276d62d57487db8e04ca10f. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/USARL8977702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb726f458261370a69dc3fe22dfc7d0d3e4b10becafc021fa39f260e3323aaa73. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:11:06Z), 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/USARL8977703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05510cf33c05aaf23f0545110410ed6f31de05a46636bca3cf9b619e8a7ac5c9. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/USARL8977705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03c4c0822140cec26e4ea0368ff44fb3e7bc35599e74b4ac804aec2d3907ebbd. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/USARL8977708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b814e0bac3ff375460d6fd08f98845022eb363d2d8bbdbfcbac068fa03c8111. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-16T00:15:52Z), 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/USARL9180309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11c9a4c554dab97c751d38e7a1c742798d36c94d068b4e322524db6a5b08f584. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/USAP39339301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x764f6ab68743a2fd6ba4911030cf3b9443537a8b07cb69ee28351de12eb4ccdb. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/USARL9960614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb98afd27821b1dc1bf73e689604e7d2a5db09619e7e081e6c23a2c5fdf4fbd3. Chain 2 (Bitcoin): anchored in block 957622 (2026-07-11T22:55:42Z), 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/USARL9960615.
KATIE WEBSTER - the swamp boogie queen / I'M BAD
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe595d52a9f89db44bfcb72d187bec67f7f7c5711e12216182391ad3bda41e126. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/DED461900172.
The Alligator Records 25th Anniversary Collection
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x657f65fc397f0c003648ced78e31935e16d14b875b0f241eb0be01bdf99b8f66. 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/USARL9601125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8ac0d658c527d347ca71897cd49d67f330a5d73791002c3b7b0230591b278b5. 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/USARL8876605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4fe3d4c87666544db99e96f8b12d2354af987837ae4461f933b47705a699c6d. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/USARL9180301.
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 0x53e40ec72fa3af55813010bae05c7f54d69ba68518d1b8e667fbf5f759270f5c. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/USARL9180302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb349acd859074987a82aa55dcc9a589248acf3045ba0bb1db3421d11c4d6fb51. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/USARL9180310.
Alligator Records 50 Years Of Genuine Houserockin' Music
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb55dd79f12fd8563a44b2e0fe9750b9e6778288bd42a491b25394cd24b0a76d. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USARL2100023.
Alligator Records 40th Anniversary Collection
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3916608876f150cd3c4b2f600a4127859c6f3a74616ec26acb43e994db6ca0bb. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/USARL1152635.
The Alligator Records 20th Anniversary Collection
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xede27013ebe62e8ee3a822270ff47fce46d1a92312cb6b6abeacea6cc30e3e7c. Chain 2 (Bitcoin): anchored in block 960225 (2026-07-30T08:04:30Z), 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/USARL9105620.