OpenTechnical

OT-2026-000025217

Publication integrity record

Three cup vacuum gripper, three outlet manifold, pump fed, supply line pressure sensor, sustained 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-2026-000025217) never changes.

Identity and time

Publication numberOT-2026-000025217 · never reused
Internal UUID01a0ae71-5fa6-7526-8244-4889ef24b46d · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:17:40.790954Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000025217
StatusPUBLIC

Content hashes

Canonical text3a0b26be8d0daa444a34db4a888316535924d71b9ab34e93254039a183119bc5
Markdown2a8a92c69bb7de251d1f83c3fc8908de8a4c4331c57fbfc59a05098c52b4e794
PDF
Publication pagef731d04b624ec99f847c32f9401fb87226556337f51159b2cae1c191a9c0a624
Manifest9533049f16e5bedef340df14bd3fb10395dcc34d2627c05d589209a19da80525

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
SignatureLyTOa07a5Cm9rj0NVVhJAixqKcf6TNC3ybXfsDEOzgdxJn/a1G67UUGdYwKWHjZMXB91zUHpy2cmxP2axQb6Dw==
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

2026-09-17T11:47:13.115616ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000025217
observed f731d04b624ec99f847c32f9401fb872...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:47:13.096986ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000025217/manifest.json
observed 9533049f16e5bedef340df14bd3fb103...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:47:13.080221ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000025217/publication.md
observed 2a8a92c69bb7de251d1f83c3fc8908de...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:47:13.061332ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000025217/publication.txt
observed 3a0b26be8d0daa444a34db4a88831653...
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.