Pith Number

pith:SIRWHD7J

pith:2005:SIRWHD7JNABSYVADVVMM5LBN35

not attested not anchored not stored refs pending

Limits of Chow groups, and a new construction of Chern-Schwartz-MacPherson classes

Paolo Aluffi

arxiv:math/0507029 v2 · 2005-07-01 · math.AG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SIRWHD7JNABSYVADVVMM5LBN35}

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	2026-05-18T03:58:12.831895Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9223638fe968032c5403ad58ceac2ddf76b7a3f76439017958af3900d3c5a77f

Aliases

arxiv: math/0507029 · arxiv_version: math/0507029v2 · doi: 10.48550/arxiv.math/0507029 · pith_short_12: SIRWHD7JNABS · pith_short_16: SIRWHD7JNABSYVAD · pith_short_8: SIRWHD7J

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/SIRWHD7JNABSYVADVVMM5LBN35 \
  | 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: 9223638fe968032c5403ad58ceac2ddf76b7a3f76439017958af3900d3c5a77f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "55f7217a3d487f5c90562bf6be2f051f839a25ebc4fe29cda72a088b36202219",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "math.AG",
    "submitted_at": "2005-07-01T20:15:50Z",
    "title_canon_sha256": "fa2d7b22e7ebe0bf145a9c84718efe0ed1db9ca618e1d77517ecb5a303109fdb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/0507029",
    "kind": "arxiv",
    "version": 2
  }
}