Pith Number

pith:RML4ZC6T

pith:2022:RML4ZC6TXWS5BYGKHSKZMXGBHL

not attested not anchored not stored refs pending

Towards the automated large-scale reconstruction of past road networks from historical maps

Craig A. Knoblock, Johannes H. Uhl, Stefan Leyk, Yao-Yi Chiang

arxiv:2202.04883 v2 · 2022-02-10 · cs.CV · physics.soc-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{RML4ZC6TXWS5BYGKHSKZMXGBHL}

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	2026-07-05T04:06:49.197089Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8b17cc8bd3bda5d0e0ca3c95965cc13af826b535b8eeeec0d43302d07f55140b

Aliases

arxiv: 2202.04883 · arxiv_version: 2202.04883v2 · doi: 10.48550/arxiv.2202.04883 · pith_short_12: RML4ZC6TXWS5 · pith_short_16: RML4ZC6TXWS5BYGK · pith_short_8: RML4ZC6T

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/RML4ZC6TXWS5BYGKHSKZMXGBHL \
  | 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: 8b17cc8bd3bda5d0e0ca3c95965cc13af826b535b8eeeec0d43302d07f55140b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1bb15438bbeddc5a55bd94a61b41a5e95d2854636d73135baff59389813697b8",
    "cross_cats_sorted": [
      "physics.soc-ph"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2022-02-10T07:51:10Z",
    "title_canon_sha256": "0da63e4154817f3e4e7da54bcdef0364abeef95eb8868dbaba6292f6c81e0732"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2202.04883",
    "kind": "arxiv",
    "version": 2
  }
}