OpenTechnical

OT-2026-000053687

Publication integrity record

Four cup vacuum gripper, four 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-2026-000053687) never changes.

Identity and time

Publication numberOT-2026-000053687 · never reused
Internal UUID01a0ae85-0a96-739c-a01d-23555af3e7a0 · 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-2026-000053687
StatusPUBLIC

Content hashes

Canonical text65b15eaa0db99e062281e6df6fd1ccb1ccccb8fdd30ca67186523af0580af9c8
Markdown2e9201820a5e5bcaa62d6104dc7b77904afe052ed16ed5cde59b72df5a9b50dc
PDF
Publication page22615902193054f6ccc277c95819a09c6ec6fd13c2ac17a6da4f3dd2a161fac7
Manifest4559044cb798ed9197f9875190f5327c335efa0ed8a41990dd8d2824fc536e2a

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
SignatureN0t5LZZOULedmsICdhF4FP9PcHbWXAUul8Qd1R8ZuWg1nw0aFwD52UHuuQ2Pa2XZHmN9QSexQBSu1JR6SFArBA==
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

2026-09-17T10:55:39.684710ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000053687
observed 22615902193054f6ccc277c95819a09c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:55:39.665387ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000053687/manifest.json
observed 4559044cb798ed9197f9875190f5327c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:55:39.646788ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000053687/publication.md
observed 2e9201820a5e5bcaa62d6104dc7b7790...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:55:39.628632ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000053687/publication.txt
observed 65b15eaa0db99e062281e6df6fd1ccb1...
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.