Pith Number

pith:7SZKALXC

pith:2016:7SZKALXCTJCCSGEVOJM6CSC7OY

not attested not anchored not stored refs pending

Ground truth? Concept-based communities versus the external classification of physics manuscripts

Alexey Boyarsky, Diego Garlaschelli, Valerio Gemmetto, Vasyl Palchykov

arxiv:1602.08451 v1 · 2016-02-06 · 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{7SZKALXCTJCCSGEVOJM6CSC7OY}

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	2026-05-18T01:07:58.273170Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fcb2a02ee29a442918957259e1485f7619e3867b4b5c713a110ab84e7dd02ba5

Aliases

arxiv: 1602.08451 · arxiv_version: 1602.08451v1 · doi: 10.48550/arxiv.1602.08451 · pith_short_12: 7SZKALXCTJCC · pith_short_16: 7SZKALXCTJCCSGEV · pith_short_8: 7SZKALXC

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/7SZKALXCTJCCSGEVOJM6CSC7OY \
  | 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: fcb2a02ee29a442918957259e1485f7619e3867b4b5c713a110ab84e7dd02ba5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "360d84b06f2d60655fb592e3536705c5cb164d1033394fe0382bc82460cfca3a",
    "cross_cats_sorted": [
      "physics.soc-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DL",
    "submitted_at": "2016-02-06T13:49:16Z",
    "title_canon_sha256": "9dd40fac0d54038562d993625917e375669e140ac401364a7658e629bd9849b9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1602.08451",
    "kind": "arxiv",
    "version": 1
  }
}