OpenTechnical

OT-2026-000078073

Publication integrity record

Foam pad vacuum gripper, three zone face, three outlet manifold, pump fed, pressure sensor per zone, 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-2026-000078073) never changes.

Identity and time

Publication numberOT-2026-000078073 · never reused
Internal UUID01a0ae95-6e8c-766a-b947-0ad18ebb59ea · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:57:03.897850Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000078073
StatusPUBLIC

Content hashes

Canonical text43ef4978b36715d7896fcc2c2b2e8dc52b64feca72ef88d36e9dc1833ea820e3
Markdown499b3e8499db011e844c89d346a4a877c8e1903522cf7f3f99c04f97c0f4d868
PDF
Publication page01f4f2fedb9b1889969b93d3f4620fa5002368f1db7528d60504b7d6cf4f8033
Manifesta4c7037a6c009b4be57e5c8d95af12b7b7f5d2071c7cf8cc979b493e16d27986

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
Signature9CPv4IKhhT1kJBtMMaEZysTO6Mblyo7/dg/ZaJ/JYYtdpUh89jcZs+V96oIfKeASvgEe7zWyRoKEa1XEneG/BQ==
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

2026-09-17T10:06:46.769517ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078073
observed 01f4f2fedb9b1889969b93d3f4620fa5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:06:46.751813ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078073/manifest.json
observed a4c7037a6c009b4be57e5c8d95af12b7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:06:46.733115ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078073/publication.md
observed 499b3e8499db011e844c89d346a4a877...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:06:46.714724ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078073/publication.txt
observed 43ef4978b36715d7896fcc2c2b2e8dc5...
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.