OpenTechnical

OT-2026-000026560

Publication integrity record

Single bellows cup vacuum gripper, 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-2026-000026560) never changes.

Identity and time

Publication numberOT-2026-000026560 · never reused
Internal UUID01a0ae71-f4a9-749a-ab9c-e4ccf84a244c · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:18:18.960773Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000026560
StatusPUBLIC

Content hashes

Canonical text7b95c3efe012b29f52cbab0bb0e9a2b6c8edc304179f7709504da829f46a5026
Markdown31b5712df1a0d13410f3100fe4943777e38efef628bfdd1f330d3e67dcce0aec
PDF
Publication pagee6b50885979d1b46c898f740b3e05a2e464579b17736d0229032572a4a3f366d
Manifest8897656073bc2d9d79da4ecf10523f89f6275752a31eb805c955793df86d3ccf

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
SignatureRbM0h/N2uPgupXSKvXkU9djokdA4hl1A68ourbk4zfS8D05crxsXVQJBOmh+MoeqkDF+8jvHgy9FUYj90W5vDA==
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

2026-09-17T11:44:41.372801ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000026560
observed e6b50885979d1b46c898f740b3e05a2e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:44:41.354614ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000026560/manifest.json
observed 8897656073bc2d9d79da4ecf10523f89...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:44:41.337601ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000026560/publication.md
observed 31b5712df1a0d13410f3100fe4943777...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:44:41.319952ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000026560/publication.txt
observed 7b95c3efe012b29f52cbab0bb0e9a2b6...
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.