Pith Number

pith:SSOP6R5H

pith:2012:SSOP6R5H4T2LF2UJPVL2WWCAH6

not attested not anchored not stored refs pending

Euler characteristics of general linear sections and polynomial Chern classes

Paolo Aluffi

arxiv:1207.6638 v1 · 2012-07-27 · 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{SSOP6R5H4T2LF2UJPVL2WWCAH6}

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	2026-05-18T03:19:24.391466Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

949cff47a7e4f4b2ea897d57ab58403f872ad6a0d599825b0bd016243e38ed16

Aliases

arxiv: 1207.6638 · arxiv_version: 1207.6638v1 · doi: 10.48550/arxiv.1207.6638 · pith_short_12: SSOP6R5H4T2L · pith_short_16: SSOP6R5H4T2LF2UJ · pith_short_8: SSOP6R5H

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/SSOP6R5H4T2LF2UJPVL2WWCAH6 \
  | 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: 949cff47a7e4f4b2ea897d57ab58403f872ad6a0d599825b0bd016243e38ed16

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bd9406c8f9429916e9ab13e03e61a4c245ad2fe08817c44506132032ba1a0aa7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2012-07-27T20:00:09Z",
    "title_canon_sha256": "d1ccbcf14d7f49d866bcae468e293bd59b666f8c08c083f7976687655913a4c9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1207.6638",
    "kind": "arxiv",
    "version": 1
  }
}