Pith Number

pith:A4WS33UX

pith:2015:A4WS33UXVOQHAGAEQMQ625V5DW

not attested not anchored not stored refs pending

Fundamental limitations of network reconstruction

Albert-L\'aszl\'o Barab\'asi, Jaime A. Moreno, Marco Tulio Angulo, Yang-Yu Liu

arxiv:1508.03559 v2 · 2015-08-14 · cs.SY · math.OC · physics.bio-ph · 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{A4WS33UXVOQHAGAEQMQ625V5DW}

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	2026-05-18T01:23:08.210753Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

072d2dee97aba07018048321ed76bd1d95be06c17cb5fb4ac8766cf69aa4bd52

Aliases

arxiv: 1508.03559 · arxiv_version: 1508.03559v2 · doi: 10.48550/arxiv.1508.03559 · pith_short_12: A4WS33UXVOQH · pith_short_16: A4WS33UXVOQHAGAE · pith_short_8: A4WS33UX

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/A4WS33UXVOQHAGAEQMQ625V5DW \
  | 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: 072d2dee97aba07018048321ed76bd1d95be06c17cb5fb4ac8766cf69aa4bd52

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2b0f0561857133497de4f9c43d892dad7b1b68c4988f10895730ffd10461cee0",
    "cross_cats_sorted": [
      "math.OC",
      "physics.bio-ph",
      "physics.soc-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SY",
    "submitted_at": "2015-08-14T16:15:59Z",
    "title_canon_sha256": "e7b2ca62f6e3ef066451148bef6297bd081fc6b27fbb7637d490590c68bd5a51"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1508.03559",
    "kind": "arxiv",
    "version": 2
  }
}