Pith Number

pith:4H2DQLGB

pith:2012:4H2DQLGB5HFTMEJ5EYIW3RIG6G

not attested not anchored not stored refs pending

Information algebra system of soft sets

Xuechong Guan, Yongming Li

arxiv:1201.2980 v1 · 2012-01-14 · cs.IT · math.IT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4H2DQLGB5HFTMEJ5EYIW3RIG6G}

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	2026-05-18T04:04:32.628266Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e1f4382cc1e9cb36113d26116dc506f1b8919a727359970ec75332a0531d7c45

Aliases

arxiv: 1201.2980 · arxiv_version: 1201.2980v1 · doi: 10.48550/arxiv.1201.2980 · pith_short_12: 4H2DQLGB5HFT · pith_short_16: 4H2DQLGB5HFTMEJ5 · pith_short_8: 4H2DQLGB

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/4H2DQLGB5HFTMEJ5EYIW3RIG6G \
  | 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: e1f4382cc1e9cb36113d26116dc506f1b8919a727359970ec75332a0531d7c45

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "206e5e574cea2c676bfe95811d3ddd27b529cc44bbd2f32c8d88fe236461d208",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://creativecommons.org/licenses/by/3.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2012-01-14T02:51:25Z",
    "title_canon_sha256": "95a1147aecfb5d91603315d5fb65de901fb047387fb5be4bc5b202f60ca54128"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1201.2980",
    "kind": "arxiv",
    "version": 1
  }
}