Pith Number

pith:IIAEUNPM

pith:2013:IIAEUNPMDIV4CTQGO5FH7ADCRD

not attested not anchored not stored refs pending

Combinatorial dichotomies and cardinal invariants

Dilip Raghavan, Stevo Todorcevic

arxiv:1305.5783 v1 · 2013-05-24 · math.LO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{IIAEUNPMDIV4CTQGO5FH7ADCRD}

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	2026-05-18T03:25:03.163817Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

42004a35ec1a2bc14e06774a7f806288fafe5e14b45788e89f55e957dfd0e795

Aliases

arxiv: 1305.5783 · arxiv_version: 1305.5783v1 · doi: 10.48550/arxiv.1305.5783 · pith_short_12: IIAEUNPMDIV4 · pith_short_16: IIAEUNPMDIV4CTQG · pith_short_8: IIAEUNPM

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/IIAEUNPMDIV4CTQGO5FH7ADCRD \
  | 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: 42004a35ec1a2bc14e06774a7f806288fafe5e14b45788e89f55e957dfd0e795

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9bfdac3e103567a8ef25b8c4bd0cbce797c65fbde8ea4022556d5de6f58a70b8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2013-05-24T16:33:20Z",
    "title_canon_sha256": "f54e68bf2d6130969da6ba54b0c8ac6b84c9345dc98b1c5978c086916d57cd1e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1305.5783",
    "kind": "arxiv",
    "version": 1
  }
}