OpenTechnical

OT-2026-000061677

Publication integrity record

Three cup vacuum gripper, three outlet manifold, pump fed, 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-2026-000061677) never changes.

Identity and time

Publication numberOT-2026-000061677 · never reused
Internal UUID01a0ae8b-b8aa-7796-a786-1c9d4ea42a69 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:46:27.528336Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000061677
StatusPUBLIC

Content hashes

Canonical text4c36d7e5b2d26e8007e7c92cfb41f449e2d6d35a54fe4234fb2bc1566cbe063a
Markdownd73da3269357d16fc2bffd1c3528bafd542c01d6a20007b33f4636bdeb60e66d
PDF
Publication pagef4d37c740fa3b2624393cce3567c15174e50280384e1dd958683fecc991260ae
Manifestec8ef49d2fe38f8ddcdbdca7f3639dd19b98046d1f2b4d0af910b846a65ec18c

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
SignatureaCwYU5MpUf7SZrZGNyOawt4i176bR7/KQppUIR566o934iVLux+aEpsSNAC0WIlCDgHtKT03ifcn/EUXtTf0CQ==
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...

Independent retrieval

2026-09-17T10:40:13.916919ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000061677
observed f4d37c740fa3b2624393cce3567c1517...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:40:13.892640ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000061677/manifest.json
observed ec8ef49d2fe38f8ddcdbdca7f3639dd1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:40:13.870853ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000061677/publication.md
observed d73da3269357d16fc2bffd1c3528bafd...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:40:13.849601ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000061677/publication.txt
observed 4c36d7e5b2d26e8007e7c92cfb41f449...
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.