Carol Welsman (born September 29, 1960)"Carol Welsman." Gale Biography in Context. Detroit: Gale, 2004. Retrieved via Biography in Context database, 2018-03-25. is a Canadian jazz pianist who accompan
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 0x36d8c9116237ac156c3cdc1f0f66648d8832d542e11a81d7f3e1023263eb1ca9. 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/ef18a424-9db4-477b-8c16-a4b49e3f32b4.json and https://artists.proofprofile.net/proofs/artist/ef18a424-9db4-477b-8c16-a4b49e3f32b4.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 0x89bbc37df9e793ee304da010c72069ba0f295df2cd799e389807c651366824e5. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T09:06:58Z), 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/CAW410600015.
Swing Ladies, Swing! A Tribute to Singers of the Swing Era
Swing Ladies, Swing! A Tribute to the Singers of the Swing Era!
Swing Ladies, Swing! A Tribute To Singers Of The Swing Era
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2820e6016e52d578245004344ee9def5f97d2d23b0b9213de9010dbdb938f20. Chain 2 (Bitcoin): anchored in block 958407 (2026-07-17T12:08:48Z), 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/CAJ220724050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41da2de026d192a61bd708fe26dc9ecbf4bf25c74654e267b52dcb8fa1f8ac78. Chain 2 (Bitcoin): anchored in block 956425 (2026-07-03T01:28:11Z), 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/CAJ220724094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3345f4e3dd7c5e92e36712e8c13da9f2f7d72245e9b9b82c593fae962f6ad5f. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/CAJ220724194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2401fc1d7ef69ffddbf6d641ebb4afb702db445877cd24a3aad79d8a1b8022e. 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/CAJ220724161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83e85b185273be35dccebfac53520f7a62ecd07a7a1b737c60d91f2c2e95d4ad. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/CAJ220724149.
Memories of You: A Tribute to Benny Goodman
Memories of You - A Tribute to Benny Goodman
I LIKE MEN! Reflections of Miss Peggy Lee
I Like Men: Reflections of Miss Peggy Lee
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6f97ca5348bf01a487fb64eaf986e72c1b15eedb458c5beb1334c3ae4ed6cf8. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:39:33Z), 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/USIF30918003.
I Like Men! Reflections of Miss Peggy Lee
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5b10481fbc8ac46622b2fd2c62952c04599c9751f3b2747d24222d7daccfdea. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-21T16:53:04Z), 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/CAJ221224407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeed4f76917112001171a1dfb74fda6b938cfec9eca6a371e0c5ffcc03ffcf778. Chain 2 (Bitcoin): anchored in block 958404 (2026-07-17T11:34:58Z), 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/CAJ221224409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f37ea2029b07ba82c6c05bc53c5408bf5f47ffdc3f79937c44df0d1442f107d. Chain 2 (Bitcoin): anchored in block 958776 (2026-07-19T20:11:59Z), 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/CAL351500140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x452da97727f28b99d6d8bfa9bbacec77176727da511ccdd0b0bfded3eb8194fc. Chain 2 (Bitcoin): anchored in block 958992 (2026-07-21T12:53:27Z), 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/QM4BV1600002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x452da97727f28b99d6d8bfa9bbacec77176727da511ccdd0b0bfded3eb8194fc. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/QM4BV1600002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7335a0fcf7cd42459643ec8306ad700d332921d7690988b6d6d8f43eb3fdd3e5. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T03:33:16Z), 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/QM4BV1600012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b939a7a2b54e510d0b4ae2bebd5a4711697df8424f533315d3ca3ee88ba86ae. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/CAJ222000019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5b7ec8728568b4faa9e3aa4c1695fcd2ba1f02b9b75ea027f95df5b2b0b9016. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T04:56:05Z), 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/CAJ222200018.