OpenTechnical

OT-2026-000054615

Publication integrity record

Four bellows cup vacuum gripper, four zone face, per zone isolation, single stage ejector, 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-2026-000054615) never changes.

Identity and time

Publication numberOT-2026-000054615 · never reused
Internal UUID01a0ae86-1283-70e6-bbfb-62302636b6ae · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:40:17.489937Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000054615
StatusPUBLIC

Content hashes

Canonical text5cf4e307ccb980b17868c35d56751a91c5b7fd7d322781676f88838afcf42e7c
Markdown09161a4685134736e2c8c4f5826057dd789a1c7fa6db38845e5622296eba762b
PDF
Publication page88b246fec27535c1938215adbfc4ecb86e75fae1bc85776c5c9af48d15e459d5
Manifestd03de228b9271754b81137d536d157496f4d81520d88d0397f43c33f1a28cefb

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
SignaturehqX2uUWV49MclZO9eMAC53ABxlu3gxhVJhBMJSYGR9RPELgsyf6WAoJ4GsA/0UkcfhuGX5RjeMbLKRcrVd4fAg==
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...
timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T10:53:40.398950ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000054615
observed 88b246fec27535c1938215adbfc4ecb8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:53:40.380859ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000054615/manifest.json
observed d03de228b9271754b81137d536d15749...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:53:40.362490ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000054615/publication.md
observed 09161a4685134736e2c8c4f5826057dd...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:53:40.343635ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000054615/publication.txt
observed 5cf4e307ccb980b17868c35d56751a91...
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.