OpenTechnical

OT-2026-000079727

Publication integrity record

Four bellows cup vacuum gripper, four zone face, single stage ejector, 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-2026-000079727) never changes.

Identity and time

Publication numberOT-2026-000079727 · never reused
Internal UUID01a0ae96-4375-767b-b701-e8b954e30e2d · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:57:58.480954Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000079727
StatusPUBLIC

Content hashes

Canonical text2f8b540c0ee1b349c74afcf88da7fa0cb2ca104615687086529b6f6ae196eaaa
Markdown63ad7c8c3db584678a9789af57426cdb949900cf4d874a716e867d64e29032f2
PDF
Publication page5ad43f4f2cdd1c5371d19cdb72f8b5882b58dc589c74f5c088f6f99e54cf69a8
Manifestd790020281aca1282faff6c58c94336aae00c8c9932afb1122b1f4a784babc06

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
SignatureTV4hM4b/EBYu6sMIkIqh+666KncLHMwdln0O53dNTBYbHb84nHtY505H52UloONwTM29owGsOzCtWEc7ce71Dw==
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

2026-09-17T10:03:35.534917ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000079727
observed 5ad43f4f2cdd1c5371d19cdb72f8b588...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:03:35.515088ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000079727/manifest.json
observed d790020281aca1282faff6c58c94336a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:03:35.452373ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000079727/publication.md
observed 63ad7c8c3db584678a9789af57426cdb...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:03:35.388935ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000079727/publication.txt
observed 2f8b540c0ee1b349c74afcf88da7fa0c...
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.