OpenTechnical

OT-2026-000072087

Publication integrity record

Two cup vacuum gripper, two zone face, three outlet manifold, single stage ejector, 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-2026-000072087) never changes.

Identity and time

Publication numberOT-2026-000072087 · never reused
Internal UUID01a0ae92-47c1-7fe6-a5c0-25acf2dd581f · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:53:37.365346Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000072087
StatusPUBLIC

Content hashes

Canonical text1c60d0842d966995772d093c40b2168d8b61a82ca16b3b9c945650dc5637836b
Markdown76d9f76ec23ace0357a8b5fb7cdbcc2a12c42449e0920f02f3eeded4b05edcd2
PDF
Publication page3844eef2e3355c86ec5cc200ae7d5b2472be15182efeedbbb963222af53367e9
Manifest3407f632e74be05f9d41bc6076ac9df9d61c2c1a4a0c554183f086d54e3e6d84

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
SignatureIgdxC3742sn4ZD8pyCrwgN53xwTbn3Sg2uWx+qfJ+jSh73a4HET7qSIohYbMMy4h3vUBoLzp8IZiJl+G3q6SAw==
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

2026-09-17T10:23:09.991845ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072087
observed 3844eef2e3355c86ec5cc200ae7d5b24...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:23:09.974318ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072087/manifest.json
observed 3407f632e74be05f9d41bc6076ac9df9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:23:09.956326ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072087/publication.md
observed 76d9f76ec23ace0357a8b5fb7cdbcc2a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:23:09.938312ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072087/publication.txt
observed 1c60d0842d966995772d093c40b2168d...
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.