OpenTechnical

OT-2026-000051910

Publication integrity record

Foam pad vacuum gripper, common isolation valve, plant vacuum fed, vented 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-2026-000051910) never changes.

Identity and time

Publication numberOT-2026-000051910 · never reused
Internal UUID01a0ae83-7c85-7f32-b396-b506ea301bff · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:37:27.829082Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000051910
StatusPUBLIC

Content hashes

Canonical textc6fb1d0e333c677b9f6b53e619afe91b23db615d6147d51daeb81da2f00b4e52
Markdown1e72aa13121ccbf46af73112ad4f969b03f12aa508a9ed9f6cf08a2944972ecf
PDF
Publication page21c8b5a9f14845cfcb712d28382ae2541a591bfcf2452294cbb0fcfa923b0fa8
Manifestd5b9076439aac11541b36314eb3429ff468a215b86a6b5be25bcfed527148c06

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
SignatureZ5MDMDPYlWRTAsZa6HfHPM9ysaP4td3xLF/HL2DDCSDHW1wLdcDaRv9Lkrb3BTJ9VEe/UiVcSBTGtbNbbC32CA==
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

2026-09-17T10:58:52.644886ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000051910
observed 21c8b5a9f14845cfcb712d28382ae254...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:58:52.625032ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000051910/manifest.json
observed d5b9076439aac11541b36314eb3429ff...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:58:52.605652ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000051910/publication.md
observed 1e72aa13121ccbf46af73112ad4f969b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:58:52.586372ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000051910/publication.txt
observed c6fb1d0e333c677b9f6b53e619afe91b...
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.