OpenTechnical

OT-2026-000059320

Publication integrity record

Single bellows cup vacuum gripper, two stage ejector, sustained blow-off after set-down

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-2026-000059320) never changes.

Identity and time

Publication numberOT-2026-000059320 · never reused
Internal UUID01a0ae89-8614-7979-ac03-342f22f06fca · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:44:03.500379Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000059320
StatusPUBLIC

Content hashes

Canonical textf3157d3f816652c2218c0dfb60a19eeb0390a040685395adc60468ac77cf9a9e
Markdown6672a3c06e2a666577f771f833fc8b3623af950e1af6d0595a370e8d43cf29c5
PDF
Publication pageb2e5222ff7e778a0048e33ffdeb30d6279a964e24faf83aadaaa29d687bf9250
Manifestb1f30888024e630e19143a642e9cd72fccf8c5e0acf533095330619b36c39080

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
SignatureEqznpDOKLylshaiM17iF5L76kKGkFUwRySnfge13BNX581TaLlc0eXo7VIiZSlqvVUBI9yTPfMD1IFOTuLtiCQ==
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...

Independent retrieval

2026-09-17T10:45:58.544105ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000059320
observed b2e5222ff7e778a0048e33ffdeb30d62...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:45:58.524217ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000059320/manifest.json
observed b1f30888024e630e19143a642e9cd72f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:45:58.507877ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000059320/publication.md
observed 6672a3c06e2a666577f771f833fc8b36...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:45:58.490049ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000059320/publication.txt
observed f3157d3f816652c2218c0dfb60a19eeb...
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.