Pith Number

pith:IC2AWNMQ

pith:2011:IC2AWNMQDHBQGDODHGGQ3NERHP

not attested not anchored not stored refs pending

Classification of some countable descendant-homogeneous digraphs

Daniela Amato, David M. Evans, John K. Truss

arxiv:1104.1277 v1 · 2011-04-07 · math.CO · math.GR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{IC2AWNMQDHBQGDODHGGQ3NERHP}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T04:24:52.553424Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

40b40b359019c3030dc3398d0db4913bccb346810437e9e83249271d9efd5703

Aliases

arxiv: 1104.1277 · arxiv_version: 1104.1277v1 · doi: 10.48550/arxiv.1104.1277 · pith_short_12: IC2AWNMQDHBQ · pith_short_16: IC2AWNMQDHBQGDOD · pith_short_8: IC2AWNMQ

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/IC2AWNMQDHBQGDODHGGQ3NERHP \
  | 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: 40b40b359019c3030dc3398d0db4913bccb346810437e9e83249271d9efd5703

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "172f9db28e89ff5a2699780b60cc98ae3954bcac1dde1b8cfb86d4caf589e9d4",
    "cross_cats_sorted": [
      "math.GR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2011-04-07T09:26:04Z",
    "title_canon_sha256": "72c2b0db7ef2d440272cf037c2f84da2069ea9242b0e12651ac1c694e741c065"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1104.1277",
    "kind": "arxiv",
    "version": 1
  }
}