Glenn Kotche (born December 31, 1970 in Roselle, Illinois, Last accessed March 11, 2012. United States) is an American drummer and composer, best known for his involvement in the band Wilco. He was
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 0x797d8509007ddceabf0d7ff57a4e97b09d956217ac83f925c3345ccca1f4a8d8. Chain 2 (Bitcoin): anchored in block 954062 (2026-06-17T07:39:10Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/46769282-3bb7-4269-ad7d-91b5edafc894.json and https://artists.proofprofile.net/proofs/artist/46769282-3bb7-4269-ad7d-91b5edafc894.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Sticks, Skins, Metal and Stone: NYU Plays the Percussion Music of Glenn Kotche
Sticks, Skins, Metal and Stone: The Percussion Music of Glenn Kotche
Vespers for a New Dark Age: I. Wayward Free Radical Dreams
Missy Mazzoli: Vespers for a New Dark Age
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 0xa9d169c84450175175a2411727a2021e44fc75cb2f7a98497805202043c389c3. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US7MN1500573 — a six-check JSON result.
Vespers for a New Dark Age: II. Hello Lord
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56b889c3c35a92c04a5b9aca467824e6be3d47d60ed383e90c372478580af97f. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US7MN1500574 — a six-check JSON result.
Vespers for a New Dark Age: IV. Come On All You
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6660988386c2f6f5e281410be29af8cf7d875bbdaca38eca9f131770379e0b6e. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US7MN1500576 — a six-check JSON result.
Vespers for a New Dark Age: V. New Dark Age
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x727ec7a1e461c178376d39869bcb60f455d32eaf0afc212a9286e0781a8f7beb. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US7MN1500577 — a six-check JSON result.