OpenTechnical

OT-2026-000061528

Publication integrity record

Single bellows cup vacuum gripper, common isolation valve, pump fed, supply line pressure sensor, sustained blow-off after 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-2026-000061528) never changes.

Identity and time

Publication numberOT-2026-000061528 · never reused
Internal UUID01a0ae8b-7b44-7c32-b09f-30dc88515f3d · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:46:11.808334Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000061528
StatusPUBLIC

Content hashes

Canonical textdb76734569b0747c17ffb723f9bec391836da0ce5c6a92633f0eed008fbee0d2
Markdown8c32b6b38d5a480cf8ad5f9a45afcaf5b85861c1971f1ce43b907a359abccb99
PDF
Publication pagec5a789be51ec9d4ddf378d3a7ad5eb29b7c89d773bd87d5f7fce0c61f030ce84
Manifestc7ebdc85466b5eb164223ae078184ba768ad2072b37bb1050af0cf990c0104f7

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
SignaturefHW43K7jxK4fbBMPjSr5DyjqIWZNvdHW87iSVowHkWgykYdRABydUXrBnYsyXTfqA5TUF0Fmum9FdqlU45ebBg==
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...

Independent retrieval

2026-09-17T10:41:26.012336ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000061528
observed c5a789be51ec9d4ddf378d3a7ad5eb29...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:41:25.995817ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000061528/manifest.json
observed c7ebdc85466b5eb164223ae078184ba7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:41:25.977697ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000061528/publication.md
observed 8c32b6b38d5a480cf8ad5f9a45afcaf5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:41:25.959569ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000061528/publication.txt
observed db76734569b0747c17ffb723f9bec391...
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.