OpenTechnical

OT-2026-000086777

Publication integrity record

Three bellows cup vacuum gripper, three zone face, three outlet manifold, pump fed, sustained 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-2026-000086777) never changes.

Identity and time

Publication numberOT-2026-000086777 · never reused
Internal UUID01a0ae9a-80a4-71a2-a581-3f90aa4f1d33 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:02:36.209195Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000086777
StatusPUBLIC

Content hashes

Canonical text3cc6a46962235903bc125be2b7c1b9a3b55a7ce4497af915d5d43b93f13316d2
Markdown7e910e2f180d9554531ad711550cfd93e96f98bb888dd6cf1f7739420ff51417
PDF
Publication page19412ecbdcad90411299d48d1d6b9fd36985f98c9ed549de2c223349c97729f4
Manifest345b4fcc092038aa979925839620b2aad956da90c256452c3d03054a2a784192

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
SignatureF5okgwNWxD1qNZmYlguGmZe0/VzdlA/T8eQi5sac+2VBD/SRnI7BpSiDFtRAu+sCyoqg6L1UhsOv/zis1kFyAQ==
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

2026-09-17T09:51:35.060969ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000086777
observed 19412ecbdcad90411299d48d1d6b9fd3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:51:35.042947ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000086777/manifest.json
observed 345b4fcc092038aa979925839620b2aa...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:51:35.026056ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000086777/publication.md
observed 7e910e2f180d9554531ad711550cfd93...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:51:35.008276ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000086777/publication.txt
observed 3cc6a46962235903bc125be2b7c1b9a3...
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.