OpenTechnical

OT-2026-000081658

Publication integrity record

Six bellows cup vacuum gripper, six outlet manifold, pump fed, supply line pressure sensor, vented 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-2026-000081658) never changes.

Identity and time

Publication numberOT-2026-000081658 · never reused
Internal UUID01a0ae97-0f73-7c7a-87e8-551e3de39a1f · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:58:50.648824Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000081658
StatusPUBLIC

Content hashes

Canonical textf53404bc71d8d1030cd1fbf5889ee31de9963806361d76819e3acf8ac7a66032
Markdown22b0234fa7952f1453b994b099d0f5abbcfe955cdc8b9d036faef8d560dba91b
PDF
Publication page98b492eb4128e7b5a8181a52ee05fe4eb5f272dd9f97e5e847d50274976c31ba
Manifestca25fed8683430b5849116417b8f584c593015c22e720db56bc024079b9664f3

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
SignatureCx90OCLboBWoUXPIHWM6S/xS/D9tQmN0l9ZJmyKz/cWswGyThB6uX2iRxgiaSTsbVGk4kXsfqndkb7FMCTxjCA==
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

2026-09-17T09:59:42.788681ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081658
observed 98b492eb4128e7b5a8181a52ee05fe4e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:59:42.769850ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081658/manifest.json
observed ca25fed8683430b5849116417b8f584c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:59:42.751553ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081658/publication.md
observed 22b0234fa7952f1453b994b099d0f5ab...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:59:42.734087ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081658/publication.txt
observed f53404bc71d8d1030cd1fbf5889ee31d...
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.