OpenTechnical

OT-2026-000072239

Publication integrity record

Two bellows cup vacuum gripper, two zone face, three outlet manifold, plant vacuum 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-2026-000072239) never changes.

Identity and time

Publication numberOT-2026-000072239 · never reused
Internal UUID01a0ae92-47c2-759f-91a2-d0c748f4f7cd · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:53:37.365346Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000072239
StatusPUBLIC

Content hashes

Canonical text2ca0d0c2cf2ef2176060ff4de21c7ab5e5163d2817015610cfccf32daa861a90
Markdownd62ef5b22c4ca465b86e64c533e0e1d4a3114abcad9d98685b64975f203436be
PDF
Publication page36e4aa642ff29c52506567a0b00ac58a23755c270b06393160caec5bfbe705d0
Manifest36fb8802604983e5843a91a49c4c1bd2cd02bca3fd313a1e2e8e3cac4a31e618

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
SignatureHadFGX3EI66gI8pI0i27zAMU58NB+RkDP2X+5+bhYOFna/WL84s1o0Ne1cHdpXFnLEBxHW40CJlnQpQDZQ7EBQ==
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

2026-09-17T10:23:20.773214ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072239
observed 36e4aa642ff29c52506567a0b00ac58a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:23:20.757673ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072239/manifest.json
observed 36fb8802604983e5843a91a49c4c1bd2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:23:20.741573ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072239/publication.md
observed d62ef5b22c4ca465b86e64c533e0e1d4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:23:20.725128ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072239/publication.txt
observed 2ca0d0c2cf2ef2176060ff4de21c7ab5...
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.