OpenTechnical

OT-2026-000052957

Publication integrity record

Two cup vacuum gripper, two outlet manifold, common isolation valve, three stage ejector, vented before set-down, on a tool changer

This page is the evidence record. It changes as evidence arrives: a trusted timestamp, an independent retrieval, a custody deposit. The disclosure itself (/p/OT-2026-000052957) never changes.

Identity and time

Publication numberOT-2026-000052957 · never reused
Internal UUID01a0ae84-a430-75d7-a5c0-bcea07597dcf · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:38:43.524202Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000052957
StatusPUBLIC

Content hashes

Canonical text5dfafd828671360b961443110ebfc42afcf546f673d813f2d7f469db655130db
Markdown691484536ce7552539c061d326d3542c984eeff0b7ab068a7b0a72262f9b0aac
PDF
Publication page479528ec39da4fb34e57f756658490c710b6ba87b01ae4e22a4924ae8e72f168
Manifest4e07947c3f2367b5cc00b82541c0fca459f682146415c2a39670981f1231a905

SHA-256, lowercase hex, over the exact bytes of each published file. Every figure is hashed individually in the manifest.

Manifest signature

AlgorithmEd25519 · key OT-SIGN-2026-01 · Verified
Signatureg/VeOc7rUuotWcnlXb1TzhF4tiEDI/D0DdHTyM3VNfB6jBNgPoVPh7/G4dSyaRiMSESRmE03h4Daq/KZ521MBg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:47:04Z
batch OT-TS-2026-W38-021 · RFC 3161 token · inclusion proof
root 954df3475fbcfbe27467725cfb2ec919...
timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T10:56:38.498182ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000052957
observed 479528ec39da4fb34e57f756658490c7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:56:38.479543ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000052957/manifest.json
observed 4e07947c3f2367b5cc00b82541c0fca4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:56:38.459929ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000052957/publication.md
observed 691484536ce7552539c061d326d3542c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:56:38.441305ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000052957/publication.txt
observed 5dfafd828671360b961443110ebfc42a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139

Requested from infrastructure separate from the publication system, over the public internet, with no credential. A MATCH means an ordinary internet client could fetch the publication and received exactly the bytes recorded above.

Independent archive

External archivePending Canonical URLs are submitted to an independent archive in batches.

A capture held by an outside archive is evidence that does not depend on OpenTechnical continuing to exist. It supplements the records above; it does not replace them.

Third-party custody

OT-CUSTODY-2026-W38OpenTechnical-Custody-2026-W38.tar.zst
f2fc69d02142424a578267e5e3a6d3bb... · 402,218,449 bytes · held by held on site pending an external custodian · retention permanent