OpenTechnical

OT-2026-000057815

Publication integrity record

Two bellows cup vacuum gripper, two zone face, four outlet manifold, pump fed, supply line pressure sensor, pulsed blow-off 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-2026-000057815) never changes.

Identity and time

Publication numberOT-2026-000057815 · never reused
Internal UUID01a0ae88-6ed8-7789-ae4a-9b24b20b5abe · 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-2026-000057815
StatusPUBLIC

Content hashes

Canonical textbbfaf186dce3427aef5f75034b9520bb1be15b181192b208f940902c71c75fcb
Markdown490347140d0efa9e0f9f4aac35ac77b83c091d63aefbc500ee3f4191e043e013
PDF
Publication page38cecf948db394e5b252dbce7ffe7c4d370f97f9f9126b95d54375324b3f7c34
Manifest1fc142b21e378123c70c35d78756a2b931eed9dc8ff21a08fee223603931622c

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
SignatureqEGfb9SzsMKeyzu4ztBzubXA2NyfMp3s0YnANpj91U6vsPAIo8C2yl1PZg7bvAc3JEP4GWt302AxrJbn0FQsCg==
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

2026-09-17T10:47:23.336446ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000057815
observed 38cecf948db394e5b252dbce7ffe7c4d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:47:23.315551ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000057815/manifest.json
observed 1fc142b21e378123c70c35d78756a2b9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:47:23.295214ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000057815/publication.md
observed 490347140d0efa9e0f9f4aac35ac77b8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:47:23.274807ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000057815/publication.txt
observed bbfaf186dce3427aef5f75034b9520bb...
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.