Pith Number

pith:ELUWQB7E

pith:2000:ELUWQB7E4EWCAXOEQX6SOESFTN

not attested not anchored not stored refs pending

On a theorem of Henri Cartan concerning the equivaraint cohomology

Liviu I. Nicolaescu

arxiv:math/0005068 v1 · 2000-05-07 · math.DG · 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{ELUWQB7E4EWCAXOEQX6SOESFTN}

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	2026-05-18T01:05:38.641006Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

22e96807e4e12c205dc485fd2712459b68450f83fba2cafa53f78ed63e536ab2

Aliases

arxiv: math/0005068 · arxiv_version: math/0005068v1 · doi: 10.48550/arxiv.math/0005068 · pith_short_12: ELUWQB7E4EWC · pith_short_16: ELUWQB7E4EWCAXOE · pith_short_8: ELUWQB7E

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/ELUWQB7E4EWCAXOEQX6SOESFTN \
  | 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: 22e96807e4e12c205dc485fd2712459b68450f83fba2cafa53f78ed63e536ab2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "53f06fb98bb815ff111d7df33ee73aea8c35244e56deb6acc2d4daf6b538d97c",
    "cross_cats_sorted": [
      "math.AT"
    ],
    "license": "",
    "primary_cat": "math.DG",
    "submitted_at": "2000-05-07T18:47:52Z",
    "title_canon_sha256": "0f2ad35ac836ab164d0e10e8f9f082bde2923c47f8067b955bea7a9c9a4ff472"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/0005068",
    "kind": "arxiv",
    "version": 1
  }
}