OpenTechnical

OT-2026-000056516

Publication integrity record

Three bellows cup vacuum gripper, three outlet manifold, pump fed, sustained blow-off after 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-2026-000056516) never changes.

Identity and time

Publication numberOT-2026-000056516 · never reused
Internal UUID01a0ae87-7af5-7275-bfdc-f13b6798f74f · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:41:49.577818Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000056516
StatusPUBLIC

Content hashes

Canonical textfd933c9f652e78718cd958dafc390e53a1b48c7752a6371057ef1de0b85f5865
Markdown08cb7a068db36308447a88eddee57bbc66758e4e38b84b4fa7f9becea9b0ef82
PDF
Publication page2fd5aa0173c24111028bfe58a746dcd52519b7eb52c0c34411aef86898f1e58d
Manifest1c83ae951fdcdd4da19a8d4e012bfc646a01b12c65e5e20c19cc0648ee7825d5

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
SignatureC7WzjkLZ3i2XfWvrcIC3cMQbzeAFc2diF8QnsC4kRYETQRhTllbSER9d6Jxn0Z+mSVaCQZNXEtfKBbd/wO+8AA==
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

2026-09-17T10:49:50.397946ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000056516
observed 2fd5aa0173c24111028bfe58a746dcd5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:49:50.378963ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000056516/manifest.json
observed 1c83ae951fdcdd4da19a8d4e012bfc64...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:49:50.361404ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000056516/publication.md
observed 08cb7a068db36308447a88eddee57bbc...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:49:50.343362ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000056516/publication.txt
observed fd933c9f652e78718cd958dafc390e53...
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.