OpenTechnical

OT-2026-000056073

Publication integrity record

Six cup vacuum gripper, six outlet manifold, pump fed, supply line pressure sensor, 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-2026-000056073) never changes.

Identity and time

Publication numberOT-2026-000056073 · never reused
Internal UUID01a0ae87-0a4b-7b70-864b-cc6b3e26e49a · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:41:20.734835Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000056073
StatusPUBLIC

Content hashes

Canonical textf70bc5a43e92d64b84b2765ea4e16d8db03574422eef2c9bca18eb8876f0c8b1
Markdown8b989190ddd98092d2f10d0ad80f79850dc33df856c7c45b0a192565289555f2
PDF
Publication page265affca4d030c5bc53d19f17e4f5d0b4b7cb36dd770deb384bc1ca0a17fca41
Manifest640a97cdff267cbb7fc20cd146f87963db5a96d10531506e4bb6a5f5dbbb6667

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
SignaturesSZftjMtBJcgdRmCorwKkO1j5+9pKbjy+hi8JMB3h/hCTq1zBsPf8c3cnhnIoEv0/Dm4fg4ACNUCoqzbMLbtAw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:47:04Z
batch OT-TS-2026-W38-021 · RFC 3161 token · inclusion proof
root 954df3475fbcfbe27467725cfb2ec919...
timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T10:51:36.508626ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000056073
observed 265affca4d030c5bc53d19f17e4f5d0b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:51:36.490516ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000056073/manifest.json
observed 640a97cdff267cbb7fc20cd146f87963...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:51:36.472630ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000056073/publication.md
observed 8b989190ddd98092d2f10d0ad80f7985...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:51:36.455233ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000056073/publication.txt
observed f70bc5a43e92d64b84b2765ea4e16d8d...
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.