David Hyde Pierce (born David Pierce; April 3, 1959) is an American actor. Known for his portrayal of psychiatrist Niles Crane on the NBC sitcom Frasier from 1993 to 2004, he received four Primetime E
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 0x76042f2b31537409fdaed2a627bc4cac25985222dd62fc1515f56639c44e8b97. 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/cb9b37a6-ac55-4cd8-88c7-1f0d714d48e4.json and https://artists.proofprofile.net/proofs/artist/cb9b37a6-ac55-4cd8-88c7-1f0d714d48e4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Find Your Grail - Original Broadway Cast Recording: "Spamalot"
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 0x09fdfc6a6ef5f3f1fca4d49d35784a41d9bbaaa6ea1a95c12834c87f98f73ff2. 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/USUMC0500043.
His Name Is Lancelot - Original Broadway Cast Recording: "Spamalot"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8da3daefde5649d9e8f73f28e857a7cfbf26354ca7370d9dd82984862d2a36c. 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/USUMC0500045.
Brave Sir Robin - Original Broadway Cast Recording: "Spamalot"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c0cec7c2d86a8a03971d888e813d32e7716f4bd0d53ea52f16aa60ceab6a46a. 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/USUMC0500041.
You Won't Succeed On Broadway - Original Broadway Cast Recording: "Spamalot"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf818379a55898adf1173c3d160c5b482312ed86b6a0384e8709d74acd96972bf. 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/USUMC0500058.
Monks Chant / He Is Not Dead Yet - Original Broadway Cast Recording: "Spamalot"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa3466d174b972dcd0fe372d10cb543b38e4afed4c0eb6e9cc1aaed12fd42a69. 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/USUMC0500059.
Knights of the Round Table/The Song That Goes Like This (Reprise) - Original Broadway Cast Recording: "Spamalot"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c9655b6e0ce9c79610b7dd399fbd5835e48b4b88659090fbad478b382aee225. 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/USUMC0500050.
All For One - Original Broadway Cast Recording: "Spamalot"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x788d6e5a772c1ec2499393761ab7d88b9d57577a51177d0ee996311b5f3ac71a. 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/USUMC0500038.
Run Away! - Original Broadway Cast Recording: "Spamalot"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x878c38fd7f5ea8f01813dc27b5ce7d9219e632327978fa7f4988076f426a2554. 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/USUMC0500060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8da3daefde5649d9e8f73f28e857a7cfbf26354ca7370d9dd82984862d2a36c. 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/USUMC0500045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd22c0359553e6b1e6f24eea80c59741dc21860e5d988407c4184fcdf57031009. 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/USC4R2442424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x047f1af3471234062810972b03373a43d2cf87769c36455e88533f1bc04437ba. Chain 2 (Bitcoin): anchored in block 959138 (2026-07-22T17:03:21Z), 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/USC4R2442433.
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