Marc Shaiman ( ; born October 22, 1959) is an American composer and lyricist for films, television, and theatre, widely known for his collaborations with lyricist and director Scott Wittman, actor Bil
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 0x5f6d86ae1f6eee23c3a8ef6d44f50efa47f34539d8fa16153b000379471d42af. 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/721baa90-5d95-4a97-9a89-3214e5ec573a.json and https://artists.proofprofile.net/proofs/artist/721baa90-5d95-4a97-9a89-3214e5ec573a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Hairspray (Soundtrack To The Motion Picture)
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 0x21306438e6031c993c1ad36892bde4d775d0163626ed70780847ba7a14a3665b. 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/USNLR0700047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x649d8a0aa568c1c2317782e9d91c48efcda6a6d2475bf7a945eb16b967384d2b. 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/USNLR0700048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb3707573174a3b771f74ec55ebe1cc433d41d1558600986951d1994acadda8d. 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/USNLR0700049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f9fae0149546ae96c982c5a8113b9064de5137f07156b72f42ba054ef52d1d3. 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/USNLR0700050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fe477631845acf3b4cad1cef8eb4189507458815c73654f7a2572b61b613a09. 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/USNLR0700051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc009dbc00c01ad1058d9f4e1fdfd90b6b1bbf19e1b81915088932584918bb151. 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/USNLR0700052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c16e6523f7a0b83a8495c4de17e5de4cc4d80dfd25206cbd4ad64942118e95b. 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/USNLR0700053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f090de2cd702d333080bdc72fcc47ef923b89ad55c714c2b36f64c3188b1e01. 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/USNLR0700054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd54c821183f0ce3f90e2a5ae19a5a20d750f3151e056cd86e791189dcf4e5176. 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/USNLR0700055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55114691f641e594e6db0865a31e31f13a34329aae0b2ca6e6559221ee6e8c1f. 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/USNLR0700056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd40928da8055e775c62ef1b396ba5d50ee7ef0b166bd221c4aa416276e46af2e. 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/USNLR0700057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x999bc47c1d4f4a0fc96eb3cd9343bb2464a9639719f858c72b4d1e9eaf8ce08d. 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/USNLR0700058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x014d0097c86d1bc25af10a13cce48812faf7b975a12c4d141f0c1486ab16522f. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USNLR0700059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7278d13c9bf7ddef7a1f861df59106889cb18460fa550bb7b55b34df8f47c800. 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/USNLR0700060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1059d0d7e359f6533ff0701a2a47e6733195b3960261e24e6972bf448fc2701b. 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/USNLR0700061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfce406c55202b8f45482d2d6efed68df1f2db1408e2f2c13b6878d7154fa9ac9. 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/USNLR0700062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8544a985611355aeff2245a52d74fac7eed617ec790bc4589a5eee2271bae8e8. 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/USNLR0700063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbe751543c7434d84f7606e97d97c68ef953a5782dcbd32343fbd5dd4bfee7b5. 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/USNLR0700064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29b7ddf1d064867edb820d9d56bc72364b0b4bf89fbbf53166c546412217f474. 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/USNLR0700065.
Hairspray (Original Motion Picture Soundtrack) [Collector's Edition]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cbe64152840ad213272b822957694ca3945e31ea84009ec4a941627876c8c92. 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/USNLR0700106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2ce1ee26764c39aca6ff0a61d630c4e6d66923a3de016da30be3cbd195061a0. 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/USNLR0700107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x649d8a0aa568c1c2317782e9d91c48efcda6a6d2475bf7a945eb16b967384d2b. 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/USNLR0700048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a57561fa5fde0fa2018bfcb38d911c6d007eb8fbe7ce396f69aee68a9ed00c4. 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/USNLR0700108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb65a97e3e158ebe370c1cace9746b9f9030c4246e63748fc1d4ba2c6d475e79f. 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/USNLR0700109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2593ef5aa5b527a514fb49bcde24d46ce3e206c7b3e02bbf1b2e894aedeaa19. 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/USNLR0700110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81ccf73f35ea09c058a5b947e493adc392b613b79c82563b41a59878bbed617b. 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/USNLR0700111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeab1aad19f8f4b06c75ba95d54894146cea567edf42c35ca87f47cdfcb705b03. 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/USNLR0700112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00c97b40652beda8f1fe4ab0462b71556df8b8111fc492cc90e55b25745334b3. 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/USNLR0700113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96f1059571724208b9ace0687744d48b6f440fc5fc91e87456cdee5de0d7a4f5. 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/USNLR0700114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf76ca0ceb9e64133de693cec9e3594c074f3d6bb6de53f3038a78701190782c9. 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/USNLR0700115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd40928da8055e775c62ef1b396ba5d50ee7ef0b166bd221c4aa416276e46af2e. 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/USNLR0700057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x158ebd736bfa686ca26b5e3f25f20a6dd13a745e76baad526a3fcf3a93d36bdc. 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/USNLR0700116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x999bc47c1d4f4a0fc96eb3cd9343bb2464a9639719f858c72b4d1e9eaf8ce08d. 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/USNLR0700058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7af4c01501c3386e7424ed0ff635d326bb2d58e08d7e21015b10206c6c46cb33. 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/USNLR0700117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x014d0097c86d1bc25af10a13cce48812faf7b975a12c4d141f0c1486ab16522f. 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/USNLR0700059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49a727ea537077049140539aa1c87684af7233870bc0a13bd4a9af8410bc5b3f. 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/USNLR0700118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a31acf61846c7e21a7965235d74ae9b881c0fd24400f7b8c1c9cf7adf738c77. 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/USNLR0700119.
You Can't Stop The Beat - Karaoke Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x252c76ff66ea964b836d23ce2495394279b6cfcbbf3f15861a3fba7b52219d44. 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/USNLR0700120.
Come So Far (Got So Far To Go) - Karaoke Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d92e288dedb274872f78eef9bece876f8ebd8d6f6cb96d5b77cd8e414a81bca. 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/USNLR0700121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbe751543c7434d84f7606e97d97c68ef953a5782dcbd32343fbd5dd4bfee7b5. 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/USNLR0700064.
Sleepless In Seattle: Original Motion Picture Soundtrack
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb745027f3844fc549cca3f16af9f803427cf8802632116ea9dea3300d5ef812. 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/USSM10002354.
A Seed of Grain: Theme from the American President (Arr. L. Hochman)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f186ae20a3f2e5f6e0eae582c3fb2cf81dba000683fe553c3d2b3ce68110f59. 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/USKC61216225.