Sheldon Mayer Harnick (April 30, 1924 – June 23, 2023) was an American lyricist and songwriter best known for his collaborations with composer Jerry Bock on musicals such as Fiorello!, She Loves Me, a
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 0xc6f6449a94feb9f9b9405882600305a014b78bfc2b53a016bb6e3614c36b6f5b. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4887cb56-5863-434e-a935-597028cabee4.json and https://artists.proofprofile.net/proofs/artist/4887cb56-5863-434e-a935-597028cabee4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
She Loves Me (2016 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 0x8d41ab8ba28e0aeac256b1417948a9d3d82b967e375478b6d9dd835a1fb1b248. 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/USSK31642363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d184fc756a16674b2cd7b1a3e3502922a55088daa0328510d79e9341bf7f30d. 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/USSK31642364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41d1d3e1076eadc20e97c1062a3d858e6f7aa1541b53013490d39293d2e62c13. 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/USSK31642365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbbb30efcfddcff131bf08ca4b38429ca84e261c27f2a19128d406417c825452. 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/USSK31642366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb409d84e8ff6bdeb3b95c9fc753b418ce4a5137f5846b7fe8e51d824c351efde. 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/USSK31642367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1c091238781e6f6d8d91408be9182535d46ea0daf8f77bffd11152eeac3c043. 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/USSK31642368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81cb6ffa1217895e41b7b03a17356430961aa02acc9e9497c5152404af9f32e5. 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/USSK31642369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x281f8d653154e04e27c1ddfd23951a259d8cb0302f5ae2eb7ee35d922d1650d3. 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/USSK31642370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a425b5fdf9c64814f1f5d1366f54fcac90e40c1592868263db7a06b4c84829a. 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/USSK31642371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2271fbc27011f24d0f5ad993cc7c04b304e15e0d4a0ff62a1811d3dbb91ee930. 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/USSK31642372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bd91bc8722b28a91eab7b1df6f32c02feb6744aaf0e616b9845572b109d037d. 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/USSK31642373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d72a09331275c402c638eb51ed4a206ef3e992aacd3cfff32a8cacc16b7ff8d. 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/USSK31642374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x678f4a9d525671e3bf53a7d47357e79945ebee713bd060bd02b69df688a97f1b. 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/USSK31642375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd83c35525557852e62fa1beab9eda11a34d42f49e7e7be3c510375a99faa18de. 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/USSK31642376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda8877a9a773ccd65d1bca22d4b6ab193c2af90804889875cd1a213e181ddb78. 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/USSK31642377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf090df52066a1f3e78a704e9cfc52580bdb1aab7570996d1a67918f839628807. 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/USSK31642378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c074c687b8bcca82cde6cf6e4e2dc4f6782fadbd2304190919018c1990a733c. 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/USSK31642379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37ad923a3ea53049103c706936da7c65a562905331bb0f42c05d38d09a40a980. 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/USSK31642380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad890916daa79ce54d1b3afc378ef5fb2818735f1c1f1ccb37eaf71ba3a2382f. 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/USSK31642381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f74f0144e7602896ac9ae4287b9d9965c368ca1c36d968865909eb8a3e5b50e. 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/USSK31642382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fd1e1a6c932a3a084ec2791d0ba6ce61cc00772a5afd573a550e49b774e55ea. 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/USSK31642383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x973ce54998f9bb22b64bca3c51bc1bb3f565ffa8f7a2b051abbb7c75be972187. 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/USSK31642384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x679bc6a0d63d28ce3dafbfc3052412f196ef21c4118fdf50c449c2b9c6c807f9. 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/USSK31642385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5051889d1b0fa7f17acadf290989e685ec41e6889cccc8a37e8cdc20d15f4e5e. 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/USSK31642386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b2c51a8196f547869b7ac628e0223cecbb7848c21e81e6ba1ce36ebfcc47b97. 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/USSK31642387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd60802143eefe93c96d9a0de6c75b08a411c48fe309f293ad14bcaac4f2fffa. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/GBAYE0801370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44b8c5e891b395873628fe11419f11205099e7bff368de1d49e13b7f59d7a890. 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/GB5KW2002895.
The Apple Tree: Gorgeous - Piano Accompaniment
AMEB Musical Theatre Grade 3: Ladies' Edition (Piano Accompaniments)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76406a2194f9c50826696f0c7aca15ba576c99c19e3b94216e93512cce9bcda5. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/AUFFF1500209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8a28c0eebdbe7f62c6a94ec41bd03ec48b5379c3b7026802db6a9fc8d1fb332. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/FIMTL9300025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11ff2595f9aa5296a8c52ccd19b4b1eab3ba388649f2e4cf37197c3a9ce2a308. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/USSM19916234.