Pith Number

pith:4YJIDCGF

pith:2020:4YJIDCGFNM4VNN3CAEB62KUTQR

not attested not anchored not stored refs pending

Digital interfaces of historical newspapers: opportunities, restrictions and recommendations

Eva Pfanzelter, Jani Marjanen, Pierre-Carl Langlais (GRIPIC), Sarah Oberbichler, Stefan Hechl

arxiv:2006.02679 v1 · 2020-06-04 · 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{4YJIDCGFNM4VNN3CAEB62KUTQR}

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	2026-07-05T01:07:59.092342Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e6128188c56b3956b7620103ed2a93846deab919737cd85470b06a7e2b8af7ff

Aliases

arxiv: 2006.02679 · arxiv_version: 2006.02679v1 · doi: 10.48550/arxiv.2006.02679 · pith_short_12: 4YJIDCGFNM4V · pith_short_16: 4YJIDCGFNM4VNN3C · pith_short_8: 4YJIDCGF

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/4YJIDCGFNM4VNN3CAEB62KUTQR \
  | 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: e6128188c56b3956b7620103ed2a93846deab919737cd85470b06a7e2b8af7ff

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "113da08a61b11e5b3f084118ae4fb16e4fa76d71a2b87ff927ff93d7b2a1ddf9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DL",
    "submitted_at": "2020-06-04T07:52:24Z",
    "title_canon_sha256": "56d99b0c8e87791245f3fbc08bb8daaa55c3a55e75715221ad747ed6aa4ae788"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2006.02679",
    "kind": "arxiv",
    "version": 1
  }
}