Pith Number

pith:B5SMG3SY

pith:2013:B5SMG3SYSWCG47MSJKNHEWJM46

not attested not anchored not stored refs pending

Simple, Fast, and Scalable Reachability Oracle

Guan Wang, Ruoming Jin

arxiv:1305.0502 v2 · 2013-05-02 · cs.DB

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{B5SMG3SYSWCG47MSJKNHEWJM46}

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	2026-05-18T03:19:34.646689Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0f64c36e5895846e7d924a9a72592ce7bdff0bc953c24ae213d25c55aae15798

Aliases

arxiv: 1305.0502 · arxiv_version: 1305.0502v2 · doi: 10.48550/arxiv.1305.0502 · pith_short_12: B5SMG3SYSWCG · pith_short_16: B5SMG3SYSWCG47MS · pith_short_8: B5SMG3SY

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/B5SMG3SYSWCG47MSJKNHEWJM46 \
  | 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: 0f64c36e5895846e7d924a9a72592ce7bdff0bc953c24ae213d25c55aae15798

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e0d76885d1c71e64c51dadcdf8ed90ea6965a69f842aca913e2f6f0b26cf2212",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DB",
    "submitted_at": "2013-05-02T16:39:04Z",
    "title_canon_sha256": "ab88ae3c14ad5fd6f2790ea2571ef908c24baf3ec5b7d391ddb3f90804c58a0f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1305.0502",
    "kind": "arxiv",
    "version": 2
  }
}