OpenTechnical

OT-2026-000068661

Publication integrity record

Six pad foam vacuum gripper, six outlet manifold, pump fed, manifold pressure sensor, 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-2026-000068661) never changes.

Identity and time

Publication numberOT-2026-000068661 · never reused
Internal UUID01a0ae90-2483-7503-8a41-36d32bfff6b5 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:51:17.262143Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000068661
StatusPUBLIC

Content hashes

Canonical textca5ad6fdbae3096c0c7e1f3c817f5ef92e8dc81da91a141c6d2f30fc07eeb23c
Markdown202aab890360d630aa7cb508684b615ff902c3a847a3e2ba7e79eac494da127b
PDF
Publication page6d82f179373949a7e53ef54215276878dcc0dcb96f60edfcb0c427b2cbad14d7
Manifestb704ad6bf6b525071eccfe921e8beb7295e4e911112bbbb7f5c9d88c9292a80d

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
Signature6pDHzmHykImKRstpZqtcYFOtMOM2gUrnXIGdZ1A1ea4ni26ORWOYvMj22udbPLJ7zfIrpKxBQt3Qkk7SCF5uDA==
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

2026-10-23T08:41:28.379737ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000068661
observed 6d82f179373949a7e53ef54215276878...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-23T08:41:28.302139ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000068661/manifest.json
observed b704ad6bf6b525071eccfe921e8beb72...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-23T08:41:28.158134ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000068661/publication.md
observed 202aab890360d630aa7cb508684b615f...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-23T08:41:28.079907ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000068661/publication.txt
observed ca5ad6fdbae3096c0c7e1f3c817f5ef9...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-20T00:41:43.504354ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000068661
observed 6d82f179373949a7e53ef54215276878...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-20T00:41:43.455914ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000068661/manifest.json
observed b704ad6bf6b525071eccfe921e8beb72...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-20T00:41:43.403910ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000068661/publication.md
observed 202aab890360d630aa7cb508684b615f...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-20T00:41:43.327136ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000068661/publication.txt
observed ca5ad6fdbae3096c0c7e1f3c817f5ef9...
fetched by grabo-systems from 34.44.131.203, 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

OT-CUSTODY-2026-W38OpenTechnical-Custody-2026-W38.tar.zst
f2fc69d02142424a578267e5e3a6d3bb... · 402,218,449 bytes · held by held on site pending an external custodian · retention permanent