OpenTechnical

OT-2026-000053279

Publication integrity record

Three cup vacuum gripper, three zone face, pump fed, supply line pressure sensor, 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-2026-000053279) never changes.

Identity and time

Publication numberOT-2026-000053279 · never reused
Internal UUID01a0ae85-0a15-7acd-b939-d29b3d7524ee · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:39:09.762364Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000053279
StatusPUBLIC

Content hashes

Canonical text93974398326d069ef287e51e4294738d718cb33408f46468993e97c8657b56bf
Markdown7dba60cf146bd46c0785b9dda330d2bb271c320abb41b533102619cf19dd4301
PDF
Publication page13a6b2e0d11e98f23db176dc9bd1a72b4a58b800c522be6c77aacad26ddf5a39
Manifest417c1ded96f9aafeefae881eb4e5508ea553025b1d17a254af495b9cbd445fe5

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
Signature1qeV337TcupjRTPxwxhJDV28/gt8Z/BcGbxjXsLoS9AKMkZjVa7fElKyKgTkyqXWCzgn/EInZMIlUmdKBs87Dg==
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

2026-09-17T10:54:57.660567ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000053279
observed 13a6b2e0d11e98f23db176dc9bd1a72b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:54:57.640037ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000053279/manifest.json
observed 417c1ded96f9aafeefae881eb4e5508e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:54:57.621357ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000053279/publication.md
observed 7dba60cf146bd46c0785b9dda330d2bb...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:54:57.602173ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000053279/publication.txt
observed 93974398326d069ef287e51e4294738d...
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.