OpenTechnical

OT-2026-000070664

Publication integrity record

Single bellows cup vacuum gripper, pump fed, vented 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-2026-000070664) never changes.

Identity and time

Publication numberOT-2026-000070664 · never reused
Internal UUID01a0ae91-8c2c-7b5d-9136-7ee800fb3c6e · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:52:49.344646Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000070664
StatusPUBLIC

Content hashes

Canonical textaa248c674a5934c2af9634ac38a457a6b0f48a2a8bb015f96b290ebed469c816
Markdown7d18a348ada80fdcc8a78082c2c2d926cedf68560691ab0bb0b024dd5daade53
PDF
Publication page8c0b019d18dbb1800421d17569cba9dc94019e1079fd5e7b6c47df43b80d9a00
Manifestf16507a516ad2b644e153e651553b593ddcafad70fda6cbaec6881888f46d305

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
Signature+8Y7dk4cR54g9HgoQrtETv5G9sLgkvFRjr6LEYs9tIOiAOOIpwTNZpXIuJriKnO09ENEpzbHAaS3hyH8hLE9Bw==
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

2026-09-17T10:25:20.328958ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000070664
observed 8c0b019d18dbb1800421d17569cba9dc...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:25:20.311836ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000070664/manifest.json
observed f16507a516ad2b644e153e651553b593...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:25:20.294307ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000070664/publication.md
observed 7d18a348ada80fdcc8a78082c2c2d926...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:25:20.275098ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000070664/publication.txt
observed aa248c674a5934c2af9634ac38a457a6...
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.