OpenTechnical

OT-2026-000013305

Publication integrity record

Four cup vacuum gripper, four outlet manifold, three 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-2026-000013305) never changes.

Identity and time

Publication numberOT-2026-000013305 · never reused
Internal UUID01a0ae6d-6fc9-759e-840f-28a88b82a3a8 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:22.837188Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000013305
StatusPUBLIC

Content hashes

Canonical text5ce7590f0236648a4892389fd7d68f411d3a4387261b0e0d48e1df23a6339dee
Markdowna2ec3a041dbabc5916f2f5d4578f88f7db356edbee62aed01ad20aacd3c63585
PDF
Publication pageee09e4d5bb445116efd2f1950d2d02a91ddb24a52ce88a5217f79bd5cecd9d0c
Manifest3aac6254133ae5e3a33f4e3d867742f15bb435903b387cb329a2bac52e2020b8

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
SignatureUbI6K51tGw+ntP0rRb2IZf4uZT55jcNcON46wHFpUyld9aAgzx98AyeuCeOsTTzURCgYO9Ggrwpg8bfiKe6iAQ==
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

2026-09-17T12:09:43.983445ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013305
observed ee09e4d5bb445116efd2f1950d2d02a9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:09:43.963916ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013305/manifest.json
observed 3aac6254133ae5e3a33f4e3d867742f1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:09:43.944394ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013305/publication.md
observed a2ec3a041dbabc5916f2f5d4578f88f7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:09:43.927240ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013305/publication.txt
observed 5ce7590f0236648a4892389fd7d68f41...
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.