OpenTechnical

OT-2026-000015153

Publication integrity record

Single cup vacuum gripper, 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-2026-000015153) never changes.

Identity and time

Publication numberOT-2026-000015153 · never reused
Internal UUID01a0ae6d-ef47-7da2-b41f-9f095f015fdb · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:55.421510Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000015153
StatusPUBLIC

Content hashes

Canonical textb1fc00a5af87b167a7af8904eef6c58655bf263c5d6275512c730224277499f8
Markdown85933bd85c8bb76617167b91da578c3356d4f16df0efc8af267f090f80509220
PDF
Publication page2275f29256546744b3a8a671119781f50d29849eb352b01a83597e804c62ae97
Manifest5544689be7584435cc6dd16f51d634b02543a6a0ae37d4b3f63c62f83ebcb180

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
Signatureg4t7TCBJ/FMFtC8vJZDBjF4GBHEO6wpczJPUvDaBU3X1dPelxuVnfIKjvkZtK/l7izE5S19+c1697vvNdntHAw==
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

2026-09-17T12:05:45.785615ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015153
observed 2275f29256546744b3a8a671119781f5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:05:45.762662ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015153/manifest.json
observed 5544689be7584435cc6dd16f51d634b0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:05:45.742364ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015153/publication.md
observed 85933bd85c8bb76617167b91da578c33...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:05:45.720613ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015153/publication.txt
observed b1fc00a5af87b167a7af8904eef6c586...
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.