OpenTechnical

OT-2026-000081247

Publication integrity record

Two cup vacuum gripper, two zone face, two outlet manifold, two stage ejector, 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-2026-000081247) never changes.

Identity and time

Publication numberOT-2026-000081247 · never reused
Internal UUID01a0ae96-f374-7fba-9196-6d2f3e2a5827 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:58:43.461344Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000081247
StatusPUBLIC

Content hashes

Canonical textab3705dd9e0ce829fcb07c74dd25095f579e2d9f2ff8c4399c16e3fc5a5d8629
Markdown9dc45bcf013f0dd5835ab97e3e1f01819e55ad072e46289f72962fc41e4d8a42
PDF
Publication pagea51901859837429817fa8e5f95f86450eb768a5143e9031cb79be10882e10039
Manifest28c64dffcde4208f123615ecf07da31c45e98adff4c4146370cd9b19c4215988

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
Signature24M/k5hs6NUbRGTzhCug2w5rG1uRCU30wx5wNMh0NEYdIsOokpQzcvT8nUOarzcPw+oZb8szlax5K60cFNiWCw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:07:03Z
batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof
root 061e9ae86cc297cdce873398aaec3f72...

Independent retrieval

2026-09-17T10:01:20.298953ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081247
observed a51901859837429817fa8e5f95f86450...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:01:20.280137ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081247/manifest.json
observed 28c64dffcde4208f123615ecf07da31c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:01:20.260344ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081247/publication.md
observed 9dc45bcf013f0dd5835ab97e3e1f0181...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:01:20.241302ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081247/publication.txt
observed ab3705dd9e0ce829fcb07c74dd25095f...
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.