Pith Number

pith:VDFSY3BK

pith:2024:VDFSY3BKGPHAVPTI7XLARPMTQT

not attested not anchored not stored refs pending

Digital Euler Characteristic Transform

Henry Kirveslahti, Xiaohan Wang

arxiv:2411.08522 v1 · 2024-11-13 · 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{VDFSY3BKGPHAVPTI7XLARPMTQT}

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	2026-07-05T09:34:48.832426Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a8cb2c6c2a33ce0abe68fdd608bd9384fbd8628fef966bc82acbb536e45ef7b6

Aliases

arxiv: 2411.08522 · arxiv_version: 2411.08522v1 · doi: 10.48550/arxiv.2411.08522 · pith_short_12: VDFSY3BKGPHA · pith_short_16: VDFSY3BKGPHAVPTI · pith_short_8: VDFSY3BK

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/VDFSY3BKGPHAVPTI7XLARPMTQT \
  | 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: a8cb2c6c2a33ce0abe68fdd608bd9384fbd8628fef966bc82acbb536e45ef7b6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c332be46ab493c146575ac68350e31cbe2f1ddbe706e5dccb6ca1ed9f19357a0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AT",
    "submitted_at": "2024-11-13T11:13:08Z",
    "title_canon_sha256": "4dd054ed12468772732b0117e6df8f50b239159f8b57ff2e1285b01d68e2fa84"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2411.08522",
    "kind": "arxiv",
    "version": 1
  }
}