OpenTechnical

OT-2026-000027883

Publication integrity record

Foam pad vacuum gripper, two zone face, per zone isolation, 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-2026-000027883) never changes.

Identity and time

Publication numberOT-2026-000027883 · never reused
Internal UUID01a0ae72-a4a5-7a6f-b2cc-7059b57e7807 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:19:04.113553Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000027883
StatusPUBLIC

Content hashes

Canonical text10e358a4a78adb3c2c94f3bb7c28ea1255c07a559bc1754fd4aef9565c1dee7c
Markdown1a0181339098fac304c73e86b056b8845438a4fa706a5758f3639377afdb9ce3
PDF
Publication page442fe8b304a200201308ae70e2fab194712a0199f0eee73d6e8c593bc9e8d3ef
Manifest1c48a66f4848341315e14caf6a5bac71e930a35afbc1c1b808ea08e1707ccd3f

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
SignatureVCexZ3RjeQH/JNWrfRvrU6pWbIjMBKgn6IPpNG5CwiKzkhHmuVqUr5hlOBnDACA5KP0ZlSKBeBlNg0BfIAqZAA==
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

2026-09-17T11:42:02.817981ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027883
observed 442fe8b304a200201308ae70e2fab194...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:02.796150ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027883/manifest.json
observed 1c48a66f4848341315e14caf6a5bac71...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:02.775620ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027883/publication.md
observed 1a0181339098fac304c73e86b056b884...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:02.756376ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027883/publication.txt
observed 10e358a4a78adb3c2c94f3bb7c28ea12...
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.