OpenTechnical

OT-2026-000013652

Publication integrity record

Single bellows cup vacuum gripper, common isolation valve, two stage ejector, 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-2026-000013652) never changes.

Identity and time

Publication numberOT-2026-000013652 · never reused
Internal UUID01a0ae6d-8de8-77f3-bbda-7f0d472ebf4a · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:30.489074Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000013652
StatusPUBLIC

Content hashes

Canonical text7083faccc82a6a8da3d50adea0438ee4426583ec5c6871ffa23e66f9864c47fe
Markdown117503c08f2df993ce5696db200859d86a5e70f39ebc9d8f45a394cdcab8757b
PDF
Publication pageb01bfaf6972d442b11f401c0c8ce2f679c146362a40209325831db52885342c0
Manifest34849400bc9dd83bae1da7dd7238b3500854611b24faafc5ab347c6a10c70ec6

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
SignatureasUjP1+xUmMoCvRClJl1LZWwF+tBT5c4MHHk0PqPikSu5Pbhl8IHed61nwwnd4MQCIcnvOa3Nr2wN13Dg4kJCg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T12:08:35.434479ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013652
observed b01bfaf6972d442b11f401c0c8ce2f67...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:08:35.414502ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013652/manifest.json
observed 34849400bc9dd83bae1da7dd7238b350...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:08:35.395586ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013652/publication.md
observed 117503c08f2df993ce5696db200859d8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:08:35.377198ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013652/publication.txt
observed 7083faccc82a6a8da3d50adea0438ee4...
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.