Pith Number

pith:YH55HT7U

pith:2026:YH55HT7U5BTMOHGUW4Q2XEWX5H

not attested not anchored not stored refs pending

Hybrid Metadata Extraction from League of Nations Index Cards: From Feasibility Study to Archival System Integration

Florian Cafiero (ENC, Gr\'egoire Mallard, LRE)

arxiv:2606.24895 v1 · 2026-06-04 · cs.DL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YH55HT7U5BTMOHGUW4Q2XEWX5H}

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	2026-06-25T00:17:45.407236Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c1fbd3cff4e866c71cd4b721ab92d7e9fc8ba84c690ae405ffc9d8fa99570756

Aliases

arxiv: 2606.24895 · arxiv_version: 2606.24895v1 · doi: 10.48550/arxiv.2606.24895 · pith_short_12: YH55HT7U5BTM · pith_short_16: YH55HT7U5BTMOHGU · pith_short_8: YH55HT7U

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/YH55HT7U5BTMOHGUW4Q2XEWX5H \
  | 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: c1fbd3cff4e866c71cd4b721ab92d7e9fc8ba84c690ae405ffc9d8fa99570756

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "19394af98e6b03197fd14b257dc70bbca72cdf31ce1f3372a379872044092a1e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DL",
    "submitted_at": "2026-06-04T10:03:41Z",
    "title_canon_sha256": "1110a34c0bc5588718b96ce25e15cd57199636e641f77b1a46705680a7f796c9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.24895",
    "kind": "arxiv",
    "version": 1
  }
}