Pith Number

pith:XDAHBJKZ

pith:2018:XDAHBJKZ5RMMGIG66HF2L3IFQ4

not attested not anchored not stored refs pending

Motivic Euler characteristics and Witt-valued characteristic classes

Marc Levine

arxiv:1806.10108 v2 · 2018-06-26 · math.AG · math.AT · math.KT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XDAHBJKZ5RMMGIG66HF2L3IFQ4}

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	2026-05-17T23:45:53.029217Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b8c070a559ec58c320def1cba5ed05872567f99cb552e9df161f863b11ce9d78

Aliases

arxiv: 1806.10108 · arxiv_version: 1806.10108v2 · doi: 10.48550/arxiv.1806.10108 · pith_short_12: XDAHBJKZ5RMM · pith_short_16: XDAHBJKZ5RMMGIG6 · pith_short_8: XDAHBJKZ

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/XDAHBJKZ5RMMGIG66HF2L3IFQ4 \
  | 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: b8c070a559ec58c320def1cba5ed05872567f99cb552e9df161f863b11ce9d78

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2879259095bd165283eb8c5908e217792c47f01a2cb97f6d7f6c684d01f18ddb",
    "cross_cats_sorted": [
      "math.AT",
      "math.KT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2018-06-26T17:00:13Z",
    "title_canon_sha256": "e99bdbe5c970276ea9723d678f4806cd0d283fbf8f4440eab8be4e3bc73b142e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1806.10108",
    "kind": "arxiv",
    "version": 2
  }
}