Pith Number

pith:UKQDFPIZ

pith:2025:UKQDFPIZI24L6JALROACBPOBGH

not attested not anchored not stored refs pending

Dehn-Sydler-Jessen Via Homological Algebra

Anubhav Nanavaty

arxiv:2502.03380 v1 · 2025-02-05 · 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{UKQDFPIZI24L6JALROACBPOBGH}

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	2026-07-05T10:10:04.054041Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a2a032bd1946b8bf240b8b8020bdc131df3c54649ec2b67777ee67a3aac740ee

Aliases

arxiv: 2502.03380 · arxiv_version: 2502.03380v1 · doi: 10.48550/arxiv.2502.03380 · pith_short_12: UKQDFPIZI24L · pith_short_16: UKQDFPIZI24L6JAL · pith_short_8: UKQDFPIZ

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/UKQDFPIZI24L6JALROACBPOBGH \
  | 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: a2a032bd1946b8bf240b8b8020bdc131df3c54649ec2b67777ee67a3aac740ee

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9d54c395e1402ce21687017d874f21581e324fe052efa0d59fdb89a001209f6d",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "math.AT",
    "submitted_at": "2025-02-05T17:17:21Z",
    "title_canon_sha256": "1d8cdff7921695f4c406560d1080d4d5c8b6eaa51468c5c1e00b7b422d223d0e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2502.03380",
    "kind": "arxiv",
    "version": 1
  }
}