Jessica Pratt may refer to: Jessica Pratt (musician) (born 1987), American folk singer-songwriter Jessica Pratt (album), Pratt's 2012 self-titled debut album Jessica Pratt (soprano) (born 1979), Aust
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 0xbb4eeecf574c395a9bbfed5d298f462eafe9a11142931af5f56d21ed84df2d19. 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/b73fdc58-6ce4-41dd-9a24-4b682edff5c4.json and https://artists.proofprofile.net/proofs/artist/b73fdc58-6ce4-41dd-9a24-4b682edff5c4.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 0xcad6274b2c519fd68946e2bc67c3c8b535cf9b44044ffae881624ca48f0b05a0. 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/QMV8L2332502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x900a64ee06cf0941122bdd60cceaa97a452a530244e971fcfb0ecdfd23c50e8a. 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/QMV8L2332503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x969e5bbf62afa57ddce537710e9d53b6b6cae00ab5dc71d70303f1a04c4c7348. 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/QMV8L2332504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc45e07fe7bf63d6008f9425cb6bdf5423730e814a19bbdde0fb6ad44fc1b03e. 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/QMV8L2332505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7264db9cf9091ba08e4247f37a71740e6850e78ed9212cf494172e17dac5ffd5. 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/QMV8L2332506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1947093ff7949a9bc9be2c53916c000d2567628815bf3721fad05cb25daf2ebf. 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/QMV8L2332507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3c8e44143d7333c6710347110076e70716d91a9cbcbb59fc31427bae4506cd2. 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/QMV8L2332508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94645190b32da2e1f36a7132067944a737a725650eeb00ebaf68242011b76bf4. 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/QMV8L2332509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebbc501db64ee5105cda59aa9047a88afe5bd8fbf651ef90b892744a1f46aedb. 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/QMV8L1723901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ae27b918acc25f7785c5d0fd3a9656565e833bea23d1c94a5088cc555e724ad. 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/QMV8L1723902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09edb1eabdbffe48ebc533153986073a0304e1177c2cdd65f46e17ca0dc8a098. 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/QMV8L1723903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90d8c9bbfe8da5e8275ae22a04f159e475a7850d85417e0417ed266350d66e80. 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/QMV8L1723904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8a230993ed2282c36428f7a10b6cc64de672f944cc1a63a00dbee5f10559138. 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/QMV8L1723905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdee61805e1aae078741931904b4e3ba153ddee5f81bd9e1a10bd96576cad3aa9. 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/QMV8L1723906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bffd268a0db5dde5bd7fc8d2b40c1df5e87ff9ecbafab21d3f04a0a3a04b01e. 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/QMV8L1723907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc923d315ca9ce736b8abce7085fc82c97802cbb35d677610684c542c11633fc8. 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/QMV8L1723908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2812ecf48913723ab4dd42e6bc108e87195e96e67985991da2ba3fd4ef81180d. 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/QMV8L1723909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd683f7c43ee568a24d4af1f68b95cf59827d8ca9c33d52c24396bc82c5e52b69. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/USA2Z1212011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94645190b32da2e1f36a7132067944a737a725650eeb00ebaf68242011b76bf4. 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/QMV8L2332509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb065a9c9e2619057c274e209f079dea4b0864db80c262916d002b18dc1ada98d. 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/QMV8L2332501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcce973d2d64bc950a33e507e1ba15fab12191b9eaa40c2c0baddc624a5f5065. 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/US3R41326701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9805832f3a494616a02f5fcb73c79a442502b7a464d9bbe9b33e6c10470104ff. 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/US3R41326703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76fe22866f68e86137b4b0c8f10ce8476922bbd33edff1d4db2e4553128bf051. 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/US3R41326705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fcffe16bb38d468aff463217fb5c85bd3fc2b1584c1a7f37347ac84d909bd1c. 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/US3R41326706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde1e35de9697a678a6ceceab1a68618a64f6b34454dc6c3618cd8ba89a86bc12. 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/US3R41326710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6900f9316e891433fb20057ef6a3284e08e8049d68dd8c38af16d9d452cde72. 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/USRC12402365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6ff00e21041b0cca34ef3c3a714fc468036109ebc7dd77e5950f892f284b5ab. 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/US58L1560601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x546087b578c632a88b03f33e76877e16b34c7c92ca35d63d4433b8bd563a116d. 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/US58L1560602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e428d6e5a1e5c5c5ec6214d72977050df7b2e5f11e043758fe30ef793c8286d. 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/US58L1560603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x947e97ddfd11d8d17274bd4df4e9f54cf3bb34a17fcd11be79970880a976acd5. 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/US58L1560604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb64011af7346a40b414a1201da6f43d3147dcf95e18f5a0caa67ab57f89c7c3. 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/US58L1560605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d43f7135732ed5e80732265b954be185e7cf230fa34b3f383b7a29ced2ce53f. 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/US58L1560606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x096a0cc6cf9d29a820b3912b722bd2006d464ceb9eead5567475189f561aa563. 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/US58L1560607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x399b89b3996f7dcba9a821ebbcfbb3d308efdba6012507eadd5e3c0ee2e447a5. 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/US58L1560608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14437a3933d27e972db30770124c2e9956d0065ff629eda3bb2478ed6381e147. 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/US58L1560609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd683f7c43ee568a24d4af1f68b95cf59827d8ca9c33d52c24396bc82c5e52b69. 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/USA2Z1212011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36792c613c9cefb896bebe136f381286e4f66e8bed7f74fc1093204485e4cea4. 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/USA2Z1212015.
Thank You, Friends: Big Star's Third Live...And More (Alex Theatre, Glendale, CA / 4/27/2016)