Henry Krieger (born February 9, 1945) is an American musical theatre composer. He most notably wrote the music for the Broadway shows Dreamgirls (1981, with lyrics and book by Tom Eyen), The Tap Danc
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 0x8bd06dbf4c2853f7f79a8ef71cc76307d466347c18425178771c1cad3448bec3. Chain 2 (Bitcoin): anchored in block 953657 (2026-06-14T16:43:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4e272908-b285-4e9c-8a7f-47cf02815e3a.json and https://artists.proofprofile.net/proofs/artist/4e272908-b285-4e9c-8a7f-47cf02815e3a.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 0xa947b36d21de1c151cf7efa364bee9740d93304a3aa5b168697e45da213cc388. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/USGF18200708.
The Tap Dance Kid (Original Broadway Cast Recording)
Side Show (Original Broadway Cast Recording)
Side Show: Act I: The Midway - Come Look at the Freaks - Voice
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45274cc1e3d8ba8c00c0b162126c1d2a56cb2810cafef672d8f246e1a31a19bb. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/USSM19702986.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25d7f66f0b2c49eed5a7aacfde581bea16899fced7a4382faedfee067b837f2f. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T13:14:05Z), 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/USSM19702989.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd53af7201565c887f019df5c3195bff4e5082b0b9cd2b47199150768ebb10998. Chain 2 (Bitcoin): anchored in block 958510 (2026-07-18T06:38:22Z), 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/USSM19702990.
Side Show: Feelings You've Got to Hide - Voice
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3eec7cbe120198b2c95c788dddae78e0bc6930cd59e48195849532061a7b28a4. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/USSM19702992.
Side Show: Who Will Love Me As I Am? - Voice
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xceac3d0642a2900ec061599a4e9394a44051253d725d831d11ea5a84760ee53c. 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/USSM19702998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2c6fe96575d44a28128734b6a15f233319a05ac1f0340665535152f18bf6f6d. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T21:08:39Z), 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/USSM19703003.
Side Show: The Texas Centennial: Tunnel of Love - Voice
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc205fe292eb890e7ab1b21763c04f388cdf9c470769c46c9cae6e6a04f34947. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/USSM19703004.
Side Show: I Will Never Leave You - Voice
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ab8c9c54746d1717becb7005dd0b93ba60303dca4f94b21cee98753635682bc. 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/USSM19703007.
Side Show (Original 2014 Broadway Cast Recording)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x304f371720d8accd0ab3cb4608e14fa3784c0f7304b4070e614aab5fdb23b2cf. 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/QMQYB1503501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f77825cd15f129a219a54734f950110b2b98709ddf1f29867939555fbf8352e. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QMQYB1503503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc8eb09c12632126ffa1fb4fde70fcc39a43bff78624319f98a1a944cc09dda0. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T10:05:23Z), 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/QMQYB1503506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6dc6377cd24200945f526ecb076a336e320a1477b114a89fec24b0e77517deb. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/QMQYB1503525.
Side Show: Added Attractions - Live at 54 Below