OpenTechnical

OT-2026-000001657

Publication integrity record

System and method for holstering a hand-held gripper

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-2026-000001657) never changes.

Identity and time

Publication numberOT-2026-000001657 · never reused
Internal UUID01a0a677-8082-759c-9bdf-1f392efb7983 · UUIDv7, RFC 9562
Publication timestamp2026-09-15T19:07:24.675310Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000001657
StatusPUBLIC

Content hashes

Canonical text0bf6a6e8a18e3ae2d066ca541e9132bc95dc0b3ed9ef1c7a4c1c18f6927e28be
Markdowne6ff92fd14275125b5bf560b13a99f900db5ad1893cb791bbedc1d99ca2d2ba5
PDF
Publication page43a9574d88d466111b21726eaba6449f9f83568dbb97f79286290be75c19508e
Manifest03b37b382689843fada6d1523d8b71e6a59b00c11a2106c35b6b94d3e86f1ebf

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
SignatureEKEOPWaoCWpmppwkt5URvhhzCVcBkQc/itbMyHAM8tV/++dyykmaNQH8ctFIXWXJlrE3S1UAcs/K/U4I79CGAQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-15T19:27:02Z
batch OT-TS-2026-W38-002 · RFC 3161 token · inclusion proof
root 2d7e364e718bd6a32072ec57f9edc195...

Independent retrieval

2026-10-20T04:41:50.707588ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000001657
observed 43a9574d88d466111b21726eaba6449f...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-20T04:41:50.658976ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000001657/manifest.json
observed 03b37b382689843fada6d1523d8b71e6...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-20T04:41:50.606503ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000001657/publication.md
observed e6ff92fd14275125b5bf560b13a99f90...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-20T04:41:50.447392ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000001657/publication.txt
observed 0bf6a6e8a18e3ae2d066ca541e9132bc...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-16T20:41:14.736019ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000001657
observed 43a9574d88d466111b21726eaba6449f...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-16T20:41:14.568117ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000001657/manifest.json
observed 03b37b382689843fada6d1523d8b71e6...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-16T20:41:14.357366ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000001657/publication.md
observed e6ff92fd14275125b5bf560b13a99f90...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-16T20:41:14.191304ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000001657/publication.txt
observed 0bf6a6e8a18e3ae2d066ca541e9132bc...
fetched by grabo-systems from 34.44.131.203, 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

OT-CUSTODY-2026-W38OpenTechnical-Custody-2026-W38.tar.zst
f2fc69d02142424a578267e5e3a6d3bb... · 402,218,449 bytes · held by held on site pending an external custodian · retention permanent