OpenTechnical

OT-2026-000049569

Publication integrity record

Four cup vacuum gripper, four outlet manifold, pump fed, manifold pressure sensor, sustained blow-off 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-2026-000049569) never changes.

Identity and time

Publication numberOT-2026-000049569 · never reused
Internal UUID01a0ae81-8f7d-7264-811e-d4c979eb5a6c · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:35:21.728203Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000049569
StatusPUBLIC

Content hashes

Canonical text50c08720d8ee238aecbba0d65e2465e6dde09fa588ff5c5380120ecbd8577510
Markdown49e7005cb499d53e8a2c9493bc1c3fe2aeb67867b694d107949b4c683c59b693
PDF
Publication page15dbbe759665c32d0decc4f58f48e2f27f6dd8cb5436c63a7a665f5686183c2c
Manifestb235be148d43ecf0a825c24bf386eeebbbe3a0dd33f4787ba4106aa6c41d9cf5

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
SignaturekoekD5Xpo3Rf0LbvLgLpJtxt1MJASjMjgiCU1JKauBDduxnU1Lg499zmpJVuLZtS0F5m3yThFbRm4HkQt2vMCA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

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

Independent retrieval

2026-09-17T11:02:32.077045ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049569
observed 15dbbe759665c32d0decc4f58f48e2f2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:02:32.056883ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049569/manifest.json
observed b235be148d43ecf0a825c24bf386eeeb...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:02:32.035766ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049569/publication.md
observed 49e7005cb499d53e8a2c9493bc1c3fe2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:02:32.014677ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000049569/publication.txt
observed 50c08720d8ee238aecbba0d65e2465e6...
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.