Pith Number

pith:DD3MGGAQ

pith:2019:DD3MGGAQAIATZPMWEDISVEGVGV

not attested not anchored not stored refs pending

Homological Percolation and the Euler Characteristic

Omer Bobrowski, Primoz Skraba

arxiv:1910.10146 v1 · 2019-10-22 · math-ph · math.CO · math.MP · math.PR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DD3MGGAQAIATZPMWEDISVEGVGV}

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	2026-07-05T00:48:47.312818Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

18f6c3181002013cbd9620d12a90d53549b899e903c20d7febf303082eba93e4

Aliases

arxiv: 1910.10146 · arxiv_version: 1910.10146v1 · doi: 10.48550/arxiv.1910.10146 · pith_short_12: DD3MGGAQAIAT · pith_short_16: DD3MGGAQAIATZPMW · pith_short_8: DD3MGGAQ

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/DD3MGGAQAIATZPMWEDISVEGVGV \
  | 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: 18f6c3181002013cbd9620d12a90d53549b899e903c20d7febf303082eba93e4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "261f3879808f4d0b6a3260d3d8f98662a610a28aa85a4f0b1b28cd4fca646398",
    "cross_cats_sorted": [
      "math.CO",
      "math.MP",
      "math.PR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math-ph",
    "submitted_at": "2019-10-22T16:49:38Z",
    "title_canon_sha256": "9a160bbfd05c81cf6b71aa40f78550a49e38c5c73ef449ecaaadc663067478c1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1910.10146",
    "kind": "arxiv",
    "version": 1
  }
}