Lorenz Milton Hart (May 2, 1895 – November 22, 1943) was an American lyricist and half of the Broadway songwriting team Rodgers and Hart. Some of his more famous lyrics include "Blue Moon"; "The Lady
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 0x6342d77d06a69bdcd5e9c1bd84173ee11ad4bb34b996840e7fff3ed7c8b710e8. Chain 2 (Bitcoin): anchored in block 953808 (2026-06-15T16:45:15Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f6364047-d009-4d63-97c1-1d9abe24dbbd.json and https://artists.proofprofile.net/proofs/artist/f6364047-d009-4d63-97c1-1d9abe24dbbd.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Boys From Syracuse: A Musical Comedy Sensation (1997 Original New York 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9013a77ec1d63d9608d191891402b98e993356f1c7ea68c4ba834ebfe047812e. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/USC4R2109609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12753c10b783595386adaeda95afc91fdb0c91cac8d9986d69c9ce61745027d0. 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/USC4R2109610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c07632b8c655acc2b21088cd54e3d238402622e113cc956fc09d3259ab4bd22. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USC4R2109617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05f6747ff7f9df3e0d07ea6deab203ad39de9cdcefef26e4aab0f1d7d5c3bb73. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USC4R2109618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7ac5085608d3c9d0869a653beb8d9fa7da40b8698661e3edd0936593915a7f1. 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/USC4R2109621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24b71755c0c8ba9ed856fb63f1064ceedb48fb61231b3a1e31ee85eb0b8c094d. 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/USC4R2109604.
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 0x690ccb65281ac12556ca6d8fc809e7bfec071e8344f1d829e712c9528556fa60. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/USC4R2109605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37d7cd57e4dc4553641ecec894ddc91617926384179eb8319d17ff0dac84db98. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/USC4R2109606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a43575ab573f241611888743905e33c50e06ae13243eded626f5d6b70c9a504. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/USC4R2109607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8fe05259f485d6a11ae9e37d4288f4f778949fc7a82674a83cf5ca250b73d53. 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/USC4R2109608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3069c9a530f3a790ff492ac59444589b72af41d9d9993654743e64ae7c84f15. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/USC4R2109611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dc68bf7e422f2e5dee0bce6aeaca19eea9e5811b68e4d917d6af07af3459c64. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), 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/USC4R2109612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c71025f03a5fc0be7dc9f41413a79ce33a49c1e7583f7fab4ed78288e71fe89. 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/USC4R2109615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37f097b68ecb018930adad139560120b9ab2a40b53f0546669a5603484e1378d. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/USC4R2109616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94d26646d27e410ddd73f1c8478b11816f4f662f6e1f363466bd3010206df967. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/USC4R2109619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81356267085f16bb93888c85edbed13d9428064c5cc5ebb09d5aa90885b0b962. 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/USC4R2109622.
The Golden Age of Light Music: Musical Kaleidoscope - Vol. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x459e9f6dcc402aed84068264828e6aaefeba164983547ce717cfe1fd21882fc6. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/CH6630754003.
THE STAFF BAND OF THE NORWEGIAN ARMED FORCES
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1193ea3ae49c304b63a027a059401b5fb15358578baafbd7003396107bfb74fa. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/NOX9X4012209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9446cacc688070ebf7e005906442bd6fe1003961a14f47cd30eaf1e50481d169. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/USBC10800100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa90cba707f2193b2afa57abd5fba3d275a14e66b640724a835149d23d29b1b42. Chain 2 (Bitcoin): anchored in block 960285 (2026-07-30T17:26:40Z), 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/USHM92128963.
Gill Bay - New Music for Flexible Instrumentation - Demo Tracks 2018-2019
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a1770f8d51bc277ca12be1309a1570e1485de864f66756ed1b8dcc7288ae11e. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/NODGN1808090.