OpenTechnical

OT-2026-000059316

Publication integrity record

Single bellows cup vacuum gripper, two stage ejector, sustained blow-off after 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-2026-000059316) never changes.

Identity and time

Publication numberOT-2026-000059316 · never reused
Internal UUID01a0ae89-8614-7ef5-8cac-90bac4edc973 · 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-2026-000059316
StatusPUBLIC

Content hashes

Canonical text49c45bf4d3f869ea4cf65b77737a686827034b62c5475c7f8e6491a9a4bb1163
Markdown5f10004cf15f1b482e96c10e17e2fa32a9369897f5f06b7b80e112d2ac1ee280
PDF
Publication pageb566c7a2119ac6832cab89f4d461668a8a0640263d785f46abfce17dbff1dcfd
Manifest6f5b4472d4683cd9c9266d6a7e748e4991d9186a77c77659920370e24f5d4b77

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
SignaturesUdlgJj4eNeNUDqGXhMeESG3fYZ6qWx6VW13mdIy3PS6LVFleqo4sQ3BbYzThhSv8mDd07IdQU3GMyCJCOJGDA==
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

2026-09-17T10:45:49.244072ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000059316
observed b566c7a2119ac6832cab89f4d461668a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:45:49.223934ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000059316/manifest.json
observed 6f5b4472d4683cd9c9266d6a7e748e49...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:45:49.202778ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000059316/publication.md
observed 5f10004cf15f1b482e96c10e17e2fa32...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:45:49.185036ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000059316/publication.txt
observed 49c45bf4d3f869ea4cf65b77737a6868...
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.