OpenTechnical

OT-2026-000057932

Publication integrity record

Single bellows cup vacuum gripper, common isolation valve, three stage ejector, 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-2026-000057932) never changes.

Identity and time

Publication numberOT-2026-000057932 · never reused
Internal UUID01a0ae88-6ed9-700c-940e-11a61ea1415d · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:42:52.020108Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000057932
StatusPUBLIC

Content hashes

Canonical texta4c95ef613f1dce02f52f102f9ec6adc24e25725095a153079753263c70c2655
Markdowna7dc47e58ee2ce7f07d0605e8a6063fb5fc15b69e36c5912cf5b8e7051b8eed0
PDF
Publication page4df23e57f460898152ea5a4625eb8e6a2bea15d06d698a4a3b83ea2dd3d2f048
Manifest9ad8f03cc1e62d2881f9ab0188564c2fef66b54e9ce0fa6b8dcf8a2d68a1a2d9

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
SignatureaoT/a+hF4yJdm4wpIlTLufwEuoCF4w3gTQLrrd68sqoYSyT1AP93slDBMo2xVq7+mf5VhTdO35tvrN5H46H9AQ==
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...

Independent retrieval

2026-09-17T10:47:32.815090ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000057932
observed 4df23e57f460898152ea5a4625eb8e6a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:47:32.798141ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000057932/manifest.json
observed 9ad8f03cc1e62d2881f9ab0188564c2f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:47:32.780408ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000057932/publication.md
observed a7dc47e58ee2ce7f07d0605e8a6063fb...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:47:32.761763ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000057932/publication.txt
observed a4c95ef613f1dce02f52f102f9ec6adc...
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.