Pith Number

pith:AE4EI2ZT

pith:2015:AE4EI2ZT6SLS7AC7YDLR7AJXPZ

not attested not anchored not stored refs pending

Cyclic cellularity and active sums

Nadia Romero

arxiv:1506.01118 v2 · 2015-06-03 · math.GR · math.AT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{AE4EI2ZT6SLS7AC7YDLR7AJXPZ}

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	2026-05-18T01:37:18.631561Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0138446b33f4972f805fc0d71f81377e7a2a95bc21a92fd6ab8d56712738588d

Aliases

arxiv: 1506.01118 · arxiv_version: 1506.01118v2 · doi: 10.48550/arxiv.1506.01118 · pith_short_12: AE4EI2ZT6SLS · pith_short_16: AE4EI2ZT6SLS7AC7 · pith_short_8: AE4EI2ZT

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/AE4EI2ZT6SLS7AC7YDLR7AJXPZ \
  | 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: 0138446b33f4972f805fc0d71f81377e7a2a95bc21a92fd6ab8d56712738588d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8911fd132119a23f917c3901e6051a5d5996e39c3268bfb5e186aece73e7e856",
    "cross_cats_sorted": [
      "math.AT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GR",
    "submitted_at": "2015-06-03T04:29:43Z",
    "title_canon_sha256": "87bd3c73b9d36aaa9110f23f78c3b419f7b8ea5bd9b051f94bd860fe5d395248"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1506.01118",
    "kind": "arxiv",
    "version": 2
  }
}