OpenTechnical

OT-2026-000073089

Publication integrity record

Four cup vacuum gripper, four 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-2026-000073089) never changes.

Identity and time

Publication numberOT-2026-000073089 · never reused
Internal UUID01a0ae92-c816-79aa-a176-c959c8d2cccf · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:54:10.336919Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000073089
StatusPUBLIC

Content hashes

Canonical text16b571ff863494b2c02d1f12a2ea457446a251a9add39f85215f413079991bff
Markdown79c19577d138956dd3ed038ae48f2ad0821d92dddde3972b1b0ae8bf6786ce24
PDF
Publication page0be40ac06bc01afc2fdbef251023d4a4d31a100fe89d088201fff6f02f415c6a
Manifest162b077041dd6f46ff7308b4b1cc96b04ccfa8063c1258b864b74a2fb03c6ae0

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
SignatureGxEkYHaZxH/dNua2KlrOH32p0my9IerSZeOy10vGroWOVstxBhMGREJxlUAMIR2pQMOo1uS5SqQALbETRM00Ag==
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

2026-09-17T10:22:02.533730ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073089
observed 0be40ac06bc01afc2fdbef251023d4a4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:22:02.517373ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073089/manifest.json
observed 162b077041dd6f46ff7308b4b1cc96b0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:22:02.499796ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073089/publication.md
observed 79c19577d138956dd3ed038ae48f2ad0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:22:02.481861ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073089/publication.txt
observed 16b571ff863494b2c02d1f12a2ea4574...
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.