Michael John Rupert (born October 23, 1951, Denver, Colorado) is an American actor, singer, director and composer. In 1968, he made his Broadway debut in The Happy Time as Bibi Bonnard for which he re
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 0x815097209cf4fbfcaf8ab4e0557e7bd90df815ab2f0e4445ee4f2b9978ac2812. 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/b59f4d81-2493-4678-8415-116d41bf2333.json and https://artists.proofprofile.net/proofs/artist/b59f4d81-2493-4678-8415-116d41bf2333.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Three Guys Naked from the Waist Down (Original Off Broadway Cast)
Mark's All-Male Thanskging Dinner (Reprise Version) [From "Elegies: A Song Cycle"]
Racing to the Moon -from Streets of America
Sunday in the Park with George (Original 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x627ec7b43e2afd70ae3c4bc36a6cdb2d388a72441b2453c27c8088415c6d0941. 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/USBC19300529.
Putting It Together (From Sunday in the Park with George)
Sondheim: Putting It Together (Original Off-Broadway Cast Recording)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x627ec7b43e2afd70ae3c4bc36a6cdb2d388a72441b2453c27c8088415c6d0941. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/USBC19300529.
Merrily We Roll Along #2 (From Merrily We Roll Along) / Have I Got a Girl for You (From Company)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed193d90e414ee8a59be0a6356bdcfe0978431345031835cdb703afaa6b0079e. 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/USV110300426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e4866eac543db8c9bef233fe943567954aef44f375f09107fac00fa26f681f6. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USV110300427.
Live Alone and Like It (From Dick Tracy)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c307cc939d2a108fb2e79ad9fc0c7397d6b11ba57f3a65e558f4e0f349c4e9d. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/USV110300437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11c1903509c2649996aa28ad01a1d4831134fafe68652626a2928096a1abb4f2. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USV110300440.
Legally Blonde The Musical (Original Broadway Cast Recording)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6eaa3419852bc27ab898e1ea4c71a4e2b58fbd62bfa9ddcca16c6d88d4dd5697. 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/USSK30720005.
Rich and Happy #1 (From Merrily We Roll Along)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x607c320dc636bba0e14ce5866391a75035bf0090064e9b151d350b9cfb57df0f. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/USV110300421.
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
Everybody Ought to Have a Maid (From A Funny Thing Happened on the Way to the Forum)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbd87bae621d804ebc085d6c69a970031facb6b88481b31d1e8ff0be33dcb921. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/USBC19300854.
Sequence: Sooner or Later (From Dick Tracy) / I'm Calm (From A Funny Thing Happened on the Way to the Forum) / Impossible (From A Funny Thing Happened on the Way to the Forum) / Ah, But Under
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6ee61f485a334c0533d6bda5e052ba389de262b98b005f216a6347ac08f09eb. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/USV110300423.
Pretty Women (From Sweeney Todd: The Demon Barber of Fleet Street)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9157898c575df473938d3f43db3a2c784d066111fc6c551e97e164c15eab5ab. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/USBC19300850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d71268fdc8837732140fd96d93310a2fec49e41611c98bb9609397ac9796c2e. Chain 2 (Bitcoin): anchored in block 960200 (2026-07-30T02:37:10Z), 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/USV110300428.
Rich and Happy #2 (From Merrily We Roll Along)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x749f0adf6ea0116ec02c5dc2ebe8207bec8faf8bdac80f69884f302eca983172. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/USV110300432.
Night Waltzes: Love Takes Time / Remember? / In Praise of Women / Perpetual Anticipation / The Sun Won't Set (From A Little Night Music)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd6a6d9ca785099c593f25bb7765202a1b128d57348d1ce2e31c326a00cb8829. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/USV110300433.
Game Sequence #1: What Would We Do Without You? (From Company) / Gun Song (From Assassins)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0aaa9eb6e930056892b9483940c4e567353f661673f8d18045b2dec22553cf7c. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/USV110300434.
Game Sequence #2: A Little Priest (From Sweeney Todd: The Demon Barber of Fleet Street)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd5a2ba835f67876624f896d123ec16b7e6dabe40a97008e194a3eda877869a3. 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/USV110300435.
Merrily We Roll Along #4 (From Merrily We Roll Along) / Being Alive (From Company)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3711f9c038d9f96b0281913f88c73ca0483185b8e2dbf788475ebbf27b5acb0b. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/USV110300442.