Pith Number

pith:VXQYLLFZ

pith:2018:VXQYLLFZOTCU2RT5HUNVD5L4IS

not attested not anchored not stored refs pending

Generalized persistence analysis based on stable rank invariant

Henri Riihim\"aki, Wojciech Chacholski

arxiv:1807.01217 v1 · 2018-06-13 · cs.CG · 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{VXQYLLFZOTCU2RT5HUNVD5L4IS}

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	2026-05-18T00:11:44.870183Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ade185acb974c54d467d3d1b51f57c44a672c5f7fbfe178f085dcec74d7e2511

Aliases

arxiv: 1807.01217 · arxiv_version: 1807.01217v1 · doi: 10.48550/arxiv.1807.01217 · pith_short_12: VXQYLLFZOTCU · pith_short_16: VXQYLLFZOTCU2RT5 · pith_short_8: VXQYLLFZ

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/VXQYLLFZOTCU2RT5HUNVD5L4IS \
  | 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: ade185acb974c54d467d3d1b51f57c44a672c5f7fbfe178f085dcec74d7e2511

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e3d34ddccede46b72785c6d5459d534b7e8a40ba5cf6a204680ceeae90b0aeef",
    "cross_cats_sorted": [
      "math.AT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CG",
    "submitted_at": "2018-06-13T14:21:26Z",
    "title_canon_sha256": "553f789369b670f3283aadc604cf0c1ba5572e192449f2e98ff5e542255b1d62"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.01217",
    "kind": "arxiv",
    "version": 1
  }
}