OpenTechnical

OT-2026-000059773

Publication integrity record

Single cup vacuum gripper, pump fed, 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-2026-000059773) never changes.

Identity and time

Publication numberOT-2026-000059773 · never reused
Internal UUID01a0ae89-ec25-7ff3-b987-9e4393f8b280 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:44:29.732559Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000059773
StatusPUBLIC

Content hashes

Canonical textb19ceda4af0b4d1092a2e3d0d10c9af6f47f99c78b601b84202abb86c53a83b1
Markdownaa2e8ea2437f752d7c76614b506cb981480879c0e53412841cbf0467c7558f98
PDF
Publication pagefe4cf5ba00ef3f915c70912f990a18bbc2121f729d265ed7c5a2fd22ac03f273
Manifest0ab2cedefc9ccda4297fa4bdae56219287bc8a97d072756ba1d1c5d046b8679f

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
SignatureIPja5vkM1p+VzPnR6bQu3SS8XlNaUe1PYdBHbZIBDknlUUbrZglzRN1nkJQELO7sKkmseG+zU5Q1poLhnYcPDw==
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

2026-09-17T10:44:30.078816ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000059773
observed fe4cf5ba00ef3f915c70912f990a18bb...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:44:30.062667ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000059773/manifest.json
observed 0ab2cedefc9ccda4297fa4bdae562192...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:44:30.045475ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000059773/publication.md
observed aa2e8ea2437f752d7c76614b506cb981...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:44:30.021570ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000059773/publication.txt
observed b19ceda4af0b4d1092a2e3d0d10c9af6...
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.