Pith Number

pith:XSAOXDFG

pith:2011:XSAOXDFG7BLMTNXH7NFHDTQGQW

not attested not anchored not stored refs pending

A Low Cost Remote Sensing System Using PC and Stereo Equipment

Joel F. Campbell, Michael A. Flood, Narasimha S. Prasad, Wade D. Hodson

arxiv:1106.2141 v3 · 2011-06-10 · physics.ed-ph · physics.ins-det

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XSAOXDFG7BLMTNXH7NFHDTQGQW}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T04:05:05.266170Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bc80eb8ca6f856c9b6e7fb4a71ce0685bca3b5eceb5b0b76673c576e562ce3d4

Aliases

arxiv: 1106.2141 · arxiv_version: 1106.2141v3 · doi: 10.48550/arxiv.1106.2141 · pith_short_12: XSAOXDFG7BLM · pith_short_16: XSAOXDFG7BLMTNXH · pith_short_8: XSAOXDFG

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/XSAOXDFG7BLMTNXH7NFHDTQGQW \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: bc80eb8ca6f856c9b6e7fb4a71ce0685bca3b5eceb5b0b76673c576e562ce3d4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b0d7c1b10ce42b7a1fcb46c7a01d09154bd37a194f247e9c3f7a43c285d8467c",
    "cross_cats_sorted": [
      "physics.ins-det"
    ],
    "license": "http://creativecommons.org/licenses/publicdomain/",
    "primary_cat": "physics.ed-ph",
    "submitted_at": "2011-06-10T18:33:59Z",
    "title_canon_sha256": "7e9f199cf19f022f40d96bc9f237461731f10190f8c50049781481cda6a88b9b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1106.2141",
    "kind": "arxiv",
    "version": 3
  }
}