OpenTechnical

OT-2026-000019111

Publication integrity record

Two bellows cup vacuum gripper, two zone face, single 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-2026-000019111) never changes.

Identity and time

Publication numberOT-2026-000019111 · never reused
Internal UUID01a0ae6e-f391-70c1-a954-a4e802b3508c · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:15:02.050431Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000019111
StatusPUBLIC

Content hashes

Canonical text0bbf7f037b59466ff047ae9ed93a0144a619080ef2c19e7224d5f57c9d3f2db5
Markdownaf7857ff0b5ac48d74e1d824c25ebc5c43ccfd83f44b1d7ce515a06593b7dcad
PDF
Publication page1342873f8d1991f644c63a70daaf1160581f744342d775388a0066fb6fe4aeae
Manifest4b639ce5e7a80945620459ab99bbf1c1280c379ecd89a16a8c33caddbb32381c

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
SignatureAN/ihTgxXm5bN+4ISE73kalEZAFWR/i+jILJeIQUG43wySXa8Zx8P5elz9/fjvUiRHmwnKScDx+uSCfLe/Y2DQ==
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

2026-09-17T11:58:24.434736ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019111
observed 1342873f8d1991f644c63a70daaf1160...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:58:24.416444ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019111/manifest.json
observed 4b639ce5e7a80945620459ab99bbf1c1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:58:24.396770ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019111/publication.md
observed af7857ff0b5ac48d74e1d824c25ebc5c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:58:24.377930ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019111/publication.txt
observed 0bbf7f037b59466ff047ae9ed93a0144...
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.