Pith Number

pith:WMECIJKR

pith:2025:WMECIJKRI7MFX7N42SS3UADDJ7

not attested not anchored not stored refs pending

Identifying cobordisms using kernel persistence

Anne Marie Svane, Lisbeth Fajstrup, S{\o}ren Strandskov S{\o}rensen, Teresa Heiss, Yossi Bokor Bleile

arxiv:2505.17858 v1 · 2025-05-23 · 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{WMECIJKRI7MFX7N42SS3UADDJ7}

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	2026-07-05T11:08:32.991775Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b30824255147d85bfdbcd4a5ba00634fecb291797c7b7caba2dd80fc15fd5107

Aliases

arxiv: 2505.17858 · arxiv_version: 2505.17858v1 · doi: 10.48550/arxiv.2505.17858 · pith_short_12: WMECIJKRI7MF · pith_short_16: WMECIJKRI7MFX7N4 · pith_short_8: WMECIJKR

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/WMECIJKRI7MFX7N42SS3UADDJ7 \
  | 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: b30824255147d85bfdbcd4a5ba00634fecb291797c7b7caba2dd80fc15fd5107

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ebc64341f4281f7a11e1c7c0ce9fb31a4bb065fe0656e1bcbc2d8c2977341fe7",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.AT",
    "submitted_at": "2025-05-23T13:08:59Z",
    "title_canon_sha256": "0e6cca95c0315d633e4c83c3fdc5a9a5cac3d3793c6b985f6744d06db4f33a44"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2505.17858",
    "kind": "arxiv",
    "version": 1
  }
}