Pith Number

pith:J2SDOWZJ

pith:2017:J2SDOWZJW2ERMI42GZFZCPBGYC

not attested not anchored not stored refs pending

Using text analysis to quantify the similarity and evolution of scientific disciplines

Eduardo G. Altmann, Joachim Scharloth, Laercio Dias, Martin Gerlach

arxiv:1706.08671 v1 · 2017-06-27 · cs.DL · 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{J2SDOWZJW2ERMI42GZFZCPBGYC}

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	2026-05-18T00:24:59.907122Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4ea4375b29b68916239a364b913c26c0912dc3ae1854ea50e07383dc3df523ab

Aliases

arxiv: 1706.08671 · arxiv_version: 1706.08671v1 · doi: 10.48550/arxiv.1706.08671 · pith_short_12: J2SDOWZJW2ER · pith_short_16: J2SDOWZJW2ERMI42 · pith_short_8: J2SDOWZJ

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/J2SDOWZJW2ERMI42GZFZCPBGYC \
  | 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: 4ea4375b29b68916239a364b913c26c0912dc3ae1854ea50e07383dc3df523ab

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "475cd45b0f3f5cc5b58f3c5baaeefa17a56fc48662d090ec2391dc85a2245455",
    "cross_cats_sorted": [
      "physics.soc-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DL",
    "submitted_at": "2017-06-27T05:12:09Z",
    "title_canon_sha256": "a88bf193468dea7e0e28f6450a7d8045a9b8e0f03e6d9fa9907971513501886c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1706.08671",
    "kind": "arxiv",
    "version": 1
  }
}