OpenTechnical

OT-2026-000021969

Publication integrity record

Six cup vacuum gripper, six outlet manifold, pump fed, sustained 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-2026-000021969) never changes.

Identity and time

Publication numberOT-2026-000021969 · never reused
Internal UUID01a0ae6f-bb5b-74f9-b72a-d1eb8c10e25a · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:15:53.201585Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000021969
StatusPUBLIC

Content hashes

Canonical text7fea07cd8059019c41ef70e89c60d7f3ccded810915cf69ed42d720f7ecca56a
Markdown68c37aa6cedfec3c900b1cca563edc51db07998d74e5782f4f56ae51207e694c
PDF
Publication page8c1acc208680567f0806ae9bb47a020d4d8b09e45f254c3d4e1999c9e908b216
Manifest793cbc2f602548e530729d5eeca64d3e944078a0c3e3bbc60fe6ecf14cff1026

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
Signatureswl9hRAwL63TX+CpkihUWLxg78dPbUJtzk/4LkM6B7DmI8XWILQKc7sFn4i7La0oayg8gQAV6Y6WyfBpIGPZAg==
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

2026-09-17T11:54:38.400115ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021969
observed 8c1acc208680567f0806ae9bb47a020d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:54:38.382963ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021969/manifest.json
observed 793cbc2f602548e530729d5eeca64d3e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:54:38.365580ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021969/publication.md
observed 68c37aa6cedfec3c900b1cca563edc51...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:54:38.348087ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021969/publication.txt
observed 7fea07cd8059019c41ef70e89c60d7f3...
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.