Pith Number

pith:7SOS7HJI

pith:2019:7SOS7HJIDTTMHE3RSUDKHXRG47

not attested not anchored not stored refs pending

Identifying vital nodes based on reverse greedy method

Simiao Liu, Tao Ren, Tao Zhou, Yanjie Xu, Yi Qi, Yixin Zhang, Zhe Li

arxiv:1907.01388 v1 · 2019-07-02 · physics.soc-ph · cs.SI · physics.data-an

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7SOS7HJIDTTMHE3RSUDKHXRG47}

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	2026-05-17T23:41:40.542087Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fc9d2f9d281ce6c393719506a3de26e7cf759741af895cff6f1b74c7b81794cb

Aliases

arxiv: 1907.01388 · arxiv_version: 1907.01388v1 · doi: 10.48550/arxiv.1907.01388 · pith_short_12: 7SOS7HJIDTTM · pith_short_16: 7SOS7HJIDTTMHE3R · pith_short_8: 7SOS7HJI

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/7SOS7HJIDTTMHE3RSUDKHXRG47 \
  | 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: fc9d2f9d281ce6c393719506a3de26e7cf759741af895cff6f1b74c7b81794cb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "61723e850d3fe2cb927cb6b7d8bfa40dd7ff9ed0630b0d7c91f82d8dce11f1c0",
    "cross_cats_sorted": [
      "cs.SI",
      "physics.data-an"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.soc-ph",
    "submitted_at": "2019-07-02T14:15:42Z",
    "title_canon_sha256": "91402812b074a8eb2867e8eee9842115d27d14922ab9b5fd65d8eccb88f78439"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.01388",
    "kind": "arxiv",
    "version": 1
  }
}