Pith Number

pith:2EJJ4C5O

pith:2011:2EJJ4C5OUJUGPLVNPL7DC47T5M

not attested not anchored not stored refs pending

Tracing the Evolution of Physics on the Backbone of Citation Networks

C. H. Yeung, S. Gualdi, Y.-C. Zhang

arxiv:1108.1325 v1 · 2011-08-05 · physics.soc-ph · cs.DL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2EJJ4C5OUJUGPLVNPL7DC47T5M}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T02:01:02.416200Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d1129e0baea26867aead7afe3173f3eb1e4dbcf5396221778b46038b443b44a2

Aliases

arxiv: 1108.1325 · arxiv_version: 1108.1325v1 · doi: 10.48550/arxiv.1108.1325 · pith_short_12: 2EJJ4C5OUJUG · pith_short_16: 2EJJ4C5OUJUGPLVN · pith_short_8: 2EJJ4C5O

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/2EJJ4C5OUJUGPLVNPL7DC47T5M \
  | 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: d1129e0baea26867aead7afe3173f3eb1e4dbcf5396221778b46038b443b44a2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f6edeb6277167ca20615b7d66b586787b0b1c33cbc8fd625cc4356e486717064",
    "cross_cats_sorted": [
      "cs.DL"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.soc-ph",
    "submitted_at": "2011-08-05T13:38:58Z",
    "title_canon_sha256": "30d8f3ffc497ddc750c9c818bcd682500a0c969b6144eea2f489ba14214acd64"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1108.1325",
    "kind": "arxiv",
    "version": 1
  }
}