OpenTechnical

OT-2026-000041154

Publication integrity record

Two pad foam vacuum gripper, two outlet manifold, pump fed, sustained blow-off after 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-2026-000041154) never changes.

Identity and time

Publication numberOT-2026-000041154 · never reused
Internal UUID01a0ae79-b142-7528-ac16-b2ef51c8ff21 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:26:45.980839Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000041154
StatusPUBLIC

Content hashes

Canonical text2f5f8eed514f4efce0524b3605d1532457503f798cf2c7e49e6ce86549bb8beb
Markdown34e1ce06d5050a91438bd653c9185fcc0cbb89f5157f6fa6f352e9a492ca36b0
PDF
Publication pageb1e04dd6d20c6fbf1dabcbb525ec48392612f42897a5f354b2725dc93fbff58a
Manifest35f31284e14236f1a082e5c75a582f499b3fcf88f00e0d88ab43abd762bd651c

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
SignatureWLoYw5AfcT/u486m3qkgoyIK0p+8M4cepJMHZb3Ly4uY3i+vtGZXVfdFMa1grZiwF1NC+SUG7YP6Oz3YODL6DA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

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

Independent retrieval

2026-09-17T11:17:05.813156ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000041154
observed b1e04dd6d20c6fbf1dabcbb525ec4839...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:17:05.795914ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000041154/manifest.json
observed 35f31284e14236f1a082e5c75a582f49...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:17:05.778025ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000041154/publication.md
observed 34e1ce06d5050a91438bd653c9185fcc...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:17:05.760958ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000041154/publication.txt
observed 2f5f8eed514f4efce0524b3605d15324...
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

Custody packagePending Custody packages are produced weekly.