Adam Guettel (; born December 16, 1964) is an American composer-lyricist of musical theater and opera. Guettel has written the Broadway musicals Floyd Collins (1994), The Light in the Piazza (2003), 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 0x163c51d27ce3bdef64caab580066cf91c819e98bd31e8120ba118091b714bb0a. 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/1d3c9da4-b2d8-4924-9d10-334b9304709d.json and https://artists.proofprofile.net/proofs/artist/1d3c9da4-b2d8-4924-9d10-334b9304709d.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 0xaabf84ffa7474b5a2633341d856b7ea5d4be694b20c1f83fe77aa21a1a7f93c5. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/USNO19743403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2390d112167fb53986264a3193192c41c77c1b2b6b52b8e1047638d0799db4d7. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/USNO19743404.
The Rescue: ’Tween a Rock an’ a Hard Place
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d2acaae9ce833d2af2ebba69d88167d36e0b8b7e3519ef3f45154746ffd0fca. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/USNO19743406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5de5f9fc777d84be63ebddb3aee50f48b01c068cdcdd3f4ac3d6ced6d233b074. Chain 2 (Bitcoin): anchored in block 957876 (2026-07-13T16:00:32Z), 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/USNO19743407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46766f02bc0df6422c94f34398f191621fdb430d7455a0af67ff2823fc68d971. Chain 2 (Bitcoin): anchored in block 958627 (2026-07-18T23:33:54Z), 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/USNO19743408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb5154ab1d3685ff82ab565c280490dbb1c6365279fa31f0cdff6d6af653d9be. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/USNO19743409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d786373a21dca433681e7e0ba035ad729372c68ba158eb668ccd1fb90050fc6. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/USNO19743410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x911d1e4432e3ab33bf51e293e070a15a81eaf6c7d71acef0a71f7aed331c324b. Chain 2 (Bitcoin): anchored in block 958104 (2026-07-15T05:34:05Z), 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/USNO19743411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7ca3666566e443ad0047d724f046c2a6c7e6181e81f5eed4393b6cfecf6b15b. Chain 2 (Bitcoin): anchored in block 958617 (2026-07-18T22:07:13Z), 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/USNO19743412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa879b3e832f612471c61483c37c3f83bb0a31716f30b05d5e98ef1a1a97b006d. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/USNO19743413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b1d9339bf8778cd308f2bf9db199ec6c8d9a1d2eee9646a664c9e252d71cf60. Chain 2 (Bitcoin): anchored in block 958988 (2026-07-21T09:08:06Z), 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/USNO19743414.
The Carnival: The Ballad of Floyd Collins - Reprise
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d6d8417eee417b9b41752fe599ea7e185448a96ebbe45494d1ca5bcbc8f9a27. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/USNO19743415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x164402b0f9a60a06a95736df5844d8b88a5efda9ab998906f181a5fe524f6db4. Chain 2 (Bitcoin): anchored in block 958422 (2026-07-17T13:35:31Z), 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/USNO19743416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a1f77327de8a0557e01b73abfdb5037aa04deabd1296bf5f4efabc186d92c0f. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/USNO19743417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbe349258358bc6d088baf1190024be2285dcd0f0220aef7d88fc9ba77c82edc. 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/USNO19953003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67fccbb49097fb31f155f2346170d3fa4e913132290a1d0ba1d6115440345944. 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/USNO19953004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a11b52dd92f0f556c034e2fdc033bb3da8e11403def42828830dc7b91934e14. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-21T17:19:51Z), 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/USNO19953005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4196802921d82ceb607b50fb6684fb0ea6ba753ff5cbe776ede3806f2d90e55. 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/USNO19953008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dd2ae809dd99fb9018e3e375317a323d9e50182b9b30c109a3eaa63940dfcca. 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/USNO19953011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18a2e1e1d3620c76ccdd9d11524dd05ba5236f5e17539919ee53ce2c724347dc. 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/USNO19953013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb9affe697cffcea5cf2cf67b6561c6284bc81a101cb739a5a82c2c031f47317. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/USNO10582902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4b495482c391e163284187a0f6c4752ab438feea8c82c76a5ac69b5ef0a784e. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/USNO10582904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed8e95951d4abe3749317ea8ff1ad1610b67d41a1163f9d62ac32f1652619357. Chain 2 (Bitcoin): anchored in block 958355 (2026-07-17T03:11:50Z), 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/USNO10582905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe39376cb56d2f3d45d6c88fab4a2fa9a10e5da9acdd19aad5e368a13cbc430ae. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/USNO10582906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49b87c9e85971139b36c4811a313712ac64917c8a8f8d4a2044dfa849ab5f9e8. 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/USNO10582907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dfa70ba56724692e55950a58ae9e0a021194c166ce1bfeeca42d6f4b748474c. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/USNO10582908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44400811c8ba795ec433e0a11a29d3221bae11f09375ed74c744d83046927748. 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/USNO10582909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a6465480e74c981e36967cbdd20a73c78410ae2e85e47b7c74c8cb59e46c2db. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/USNO10582911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8df655d24610113a018e38c97ce36df401a1f60f62818d0d584ffb77e6dfd154. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/USNO10582913.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe82bf8b0b51e1c0520bb583127cd96071965e69ddb662b3aab9ea429115dfe7e. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T02:31:22Z), 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/USNO10582914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a4ca6e34eaa973c85d01d096735fb2d1dfe834d20e7853c28bc1526624154d4. 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/USNO10582915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x543a3e828ce2ec32daabd3f0cae9aa6ad62e616cde5cce899814d55587b6ad40. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/USNO10582918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34521c93a55df86efa12993a0af88ea1a46e149214a31f4ace39d5b4df5bdb5e. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/USNO10582917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ecc645fe4cc294defd4e61dc26f2ba575eb8c4ec7e4d11b99797c1287c9f2ab. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/USNO10591700.
Days of Wine and Roses (Original Cast Recording)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22e131095944ecfe5a332b5eb9928b1d49b991615d4aba8eaa4c9fca62f03412. Chain 2 (Bitcoin): anchored in block 958506 (2026-07-18T06:14:51Z), 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/USNO12300343.
Floyd Collins (Original Broadway Cast Recording)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc3b4d35d76428a881bde8e3b84669eb9fb0bbf91e1d24819885db53c7877e07. 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/USNO10058013.