OpenTechnical

OT-2026-000078340

Publication integrity record

Four bellows cup vacuum gripper, four outlet manifold, plant vacuum 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-2026-000078340) never changes.

Identity and time

Publication numberOT-2026-000078340 · never reused
Internal UUID01a0ae95-7c27-7506-823f-4b77566c0809 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:57:07.483031Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000078340
StatusPUBLIC

Content hashes

Canonical text1108c2ff7024a75c214782692a4697271a6f51646f5d5f6358f4e19d10fcbd34
Markdownd928ef99e236c79f63b2f19f2c8578df6503b46490941b3e28a290903d29eef0
PDF
Publication page2cc2361d8c1a3aab35dca634c50e44da7ee9953d31b22edb5de1aa784452f913
Manifestd53129e8286376595a2dcb5669bc30df27f775009668430be48903ee4468fb13

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
SignatureEpcLTDZzt6jTTS4WL0Gspw1bkQRtzwwCHCRO+Hj/CmckSN8+pQF5fzW/vilLUzLYTuFE46kMBgun1V+d/YgwAA==
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

2026-09-17T10:06:18.540680ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078340
observed 2cc2361d8c1a3aab35dca634c50e44da...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:06:18.523330ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078340/manifest.json
observed d53129e8286376595a2dcb5669bc30df...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:06:18.506220ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078340/publication.md
observed d928ef99e236c79f63b2f19f2c8578df...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:06:18.489683ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078340/publication.txt
observed 1108c2ff7024a75c214782692a469727...
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.