OpenTechnical

OT-2026-000023516

Publication integrity record

Single bellows cup vacuum gripper, common isolation valve, single stage ejector, 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-2026-000023516) never changes.

Identity and time

Publication numberOT-2026-000023516 · never reused
Internal UUID01a0ae70-7269-73e9-8b18-6b0a4f5b584b · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:16:40.056870Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000023516
StatusPUBLIC

Content hashes

Canonical text77638b09218e54d68d60c393af183d76988508daaf8d7dcaa571b3024f6543d6
Markdownaf4f3d057478fb13c58a3a35c0fb90df83160068d09de96b2c5eace490f04a14
PDF
Publication pagebc0d1ad241b12f68a41c5f014103cb74984297680e427797a1c7099afcae445d
Manifest2e0cdecf6e347eb2c09ec0095b486dbe93d37df4f7a27f78f550190f36b1d184

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
SignatureqPfJ83Z5BmXZczCzG259UZRyItj2x9DvjYVnb/Y6ub1w/E15OB0ncOBpRYDtRhZDu93OGHUHeBina3+27UrsDQ==
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

2026-09-17T11:51:45.330378ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000023516
observed bc0d1ad241b12f68a41c5f014103cb74...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:51:45.312376ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000023516/manifest.json
observed 2e0cdecf6e347eb2c09ec0095b486dbe...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:51:45.295063ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000023516/publication.md
observed af4f3d057478fb13c58a3a35c0fb90df...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:51:45.275726ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000023516/publication.txt
observed 77638b09218e54d68d60c393af183d76...
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.