Pith Number

pith:MVSDFQGD

pith:2013:MVSDFQGDYGR2SEBVYYSDVTRWDV

not attested not anchored not stored refs pending

Semantic Tagging on Historical Maps

Bernhard Haslhofer, Carl Lagoze, Francois Guimbretiere, Werner Robitza

arxiv:1304.1636 v1 · 2013-04-05 · cs.DL · cs.HC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{MVSDFQGDYGR2SEBVYYSDVTRWDV}

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	2026-05-18T03:28:55.116788Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

656432c0c3c1a3a91035c6243ace361d48e7be85c250d23cc71bcfe6bca076c0

Aliases

arxiv: 1304.1636 · arxiv_version: 1304.1636v1 · doi: 10.48550/arxiv.1304.1636 · pith_short_12: MVSDFQGDYGR2 · pith_short_16: MVSDFQGDYGR2SEBV · pith_short_8: MVSDFQGD

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/MVSDFQGDYGR2SEBVYYSDVTRWDV \
  | 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: 656432c0c3c1a3a91035c6243ace361d48e7be85c250d23cc71bcfe6bca076c0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ac77f1d414908dedac7aa47c9465cef8f60c3269b0b5d0430d3bd4cde8bd6e13",
    "cross_cats_sorted": [
      "cs.HC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DL",
    "submitted_at": "2013-04-05T08:23:44Z",
    "title_canon_sha256": "7f50b8185327211deaa4cc45da35c9b16fd1ee0e3e5013a850b85dde75eb393a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1304.1636",
    "kind": "arxiv",
    "version": 1
  }
}