OpenTechnical

OT-2026-000071171

Publication integrity record

Four bellows cup vacuum gripper, four zone face, per zone isolation, 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-2026-000071171) never changes.

Identity and time

Publication numberOT-2026-000071171 · never reused
Internal UUID01a0ae91-e0eb-7676-b9b0-44f252b4a693 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:53:11.039722Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000071171
StatusPUBLIC

Content hashes

Canonical text1112c923c8233e1b6d5a6638490c2a72141f77c183ed82cd2599a9604c2f53ed
Markdown2ef6e3061b2836b733a0b24235c5a9b5eace208d3a780b31b252bfbe4e054643
PDF
Publication page81b9f6a4b384cdb1fb89c05c58e374739a7b1e186f784e7d699bbe6e3984e0f1
Manifestc1d0609085aac111726be5e9c8c6690d80189bb415226a8b5732164ea52a285a

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
SignaturemSvbm3F2tRAtz2f87p7tbZTumm77/+Qi6aTpitGJ89z5VrUtxW6NTbryu1ov3fcCzHtkkhA8u2jJVHjqMTO4Aw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:07:03Z
batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof
root 061e9ae86cc297cdce873398aaec3f72...

Independent retrieval

2026-09-17T10:24:40.894586ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071171
observed 81b9f6a4b384cdb1fb89c05c58e37473...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:24:40.876105ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071171/manifest.json
observed c1d0609085aac111726be5e9c8c6690d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:24:40.856874ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071171/publication.md
observed 2ef6e3061b2836b733a0b24235c5a9b5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:24:40.839229ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071171/publication.txt
observed 1112c923c8233e1b6d5a6638490c2a72...
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.