Pith Number

pith:OLNGKTLU

pith:2024:OLNGKTLUZXVV7FB4Q2CMARWVDR

not attested not anchored not stored refs pending

Graded differential groups, Cartan-Eilenberg systems and conjectures in Conley index theory

Kelly Spendlove, Robert Vandervorst

arxiv:2406.19977 v1 · 2024-06-28 · math.AT · math.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OLNGKTLUZXVV7FB4Q2CMARWVDR}

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	2026-07-05T08:37:57.550721Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

72da654d74cdeb5f943c8684c046d51c7ca28b71f42cf4ab8f21a3e99e66f8eb

Aliases

arxiv: 2406.19977 · arxiv_version: 2406.19977v1 · doi: 10.48550/arxiv.2406.19977 · pith_short_12: OLNGKTLUZXVV · pith_short_16: OLNGKTLUZXVV7FB4 · pith_short_8: OLNGKTLU

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/OLNGKTLUZXVV7FB4Q2CMARWVDR \
  | 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: 72da654d74cdeb5f943c8684c046d51c7ca28b71f42cf4ab8f21a3e99e66f8eb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "066e95707810ced88262de7f3ac55e7393455b5396462c04231c0b7a8275a11c",
    "cross_cats_sorted": [
      "math.DS"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.AT",
    "submitted_at": "2024-06-28T15:04:07Z",
    "title_canon_sha256": "444f8a7c394dbb203b06651100b5b4e81a6f87c57c9127ce6d3211ed99ada6e6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2406.19977",
    "kind": "arxiv",
    "version": 1
  }
}