OpenTechnical

OT-2026-000081818

Publication integrity record

Three bellows cup vacuum gripper, three outlet manifold, common isolation valve, plant vacuum fed, supply line pressure sensor, vented 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-2026-000081818) never changes.

Identity and time

Publication numberOT-2026-000081818 · never reused
Internal UUID01a0ae97-0f75-7dc5-9c5e-113f837e807b · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:58:50.648824Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000081818
StatusPUBLIC

Content hashes

Canonical text97133d48056bd62fc12faa1dfb5921773e808fadcb95bed508253938ae8a4474
Markdown3d6e0720ebc00258332121c4bf925115ff152256ed14b3a90228b17a52f51c21
PDF
Publication page24260c95aadbe5a4cdd3666039128aa195fc3f3bbcfd5578065bf89bf7703fc8
Manifest405b861f8d874cfbc1e2d3f18417c441a942fae3ad869b734883272be59c1c55

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
SignatureUHMh3Jr1R/6uBtZunGIrIpN/7d2QZxDVto+O7nfVsGwXOz6q12cpU63LfaBLjqFdo/Myn7r4bZuR+OZnbDVDCg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:07:03Z
batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof
root 061e9ae86cc297cdce873398aaec3f72...

Independent retrieval

2026-09-17T09:59:55.450720ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081818
observed 24260c95aadbe5a4cdd3666039128aa1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:59:55.430515ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081818/manifest.json
observed 405b861f8d874cfbc1e2d3f18417c441...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:59:55.412178ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081818/publication.md
observed 3d6e0720ebc00258332121c4bf925115...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:59:55.391659ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081818/publication.txt
observed 97133d48056bd62fc12faa1dfb592177...
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.