OpenTechnical

OT-2026-000025419

Publication integrity record

Two cup vacuum gripper, two zone face, six outlet manifold, 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-2026-000025419) never changes.

Identity and time

Publication numberOT-2026-000025419 · never reused
Internal UUID01a0ae71-5fa7-7d9e-a6a5-486231186db6 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:17:40.790954Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000025419
StatusPUBLIC

Content hashes

Canonical textf40f8b50090df9c6fbd31fc1a3ef3989d4024e89eb44d7560d32155b7ec76942
Markdown8eb33b52bd32cd47d3aa1df2736c3777a83156126e5a84fbb1e4f03aa7771f67
PDF
Publication pageb0f42ed764dd39981d8e6a4ed525d5a184d8d80637f37d51327e5dacf61a49fc
Manifest30d568c60473a233be6feb2afb5f9de64700e7094cdadd902348d67c3adbe608

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
SignatureRtoRaKdhtD2whte6JnskX3b0fnrHu4gsBYgkbplALqLCx9oJbJEEAe4UoHVfiD6iiy4qa70eIjCgiOFbNddZCA==
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

2026-09-17T11:47:29.668878ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000025419
observed b0f42ed764dd39981d8e6a4ed525d5a1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:47:29.647791ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000025419/manifest.json
observed 30d568c60473a233be6feb2afb5f9de6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:47:29.628898ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000025419/publication.md
observed 8eb33b52bd32cd47d3aa1df2736c3777...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:47:29.607599ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000025419/publication.txt
observed f40f8b50090df9c6fbd31fc1a3ef3989...
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.