Pith Number

pith:PQUHMQKK

pith:2015:PQUHMQKKPPIP53IRQOEKW564PO

not attested not anchored not stored refs pending

Estimating Multidimensional Persistent Homology through a Finite Sampling

Claudia Landi, Massimo Ferri, Niccol\`o Cavazza

arxiv:1507.05277 v1 · 2015-07-19 · 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{PQUHMQKKPPIP53IRQOEKW564PO}

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	2026-05-18T01:36:37.348368Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7c2876414a7bd0feed118388ab77dc7b9e1ea64836ceeae0f492fe67c9123138

Aliases

arxiv: 1507.05277 · arxiv_version: 1507.05277v1 · doi: 10.48550/arxiv.1507.05277 · pith_short_12: PQUHMQKKPPIP · pith_short_16: PQUHMQKKPPIP53IR · pith_short_8: PQUHMQKK

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/PQUHMQKKPPIP53IRQOEKW564PO \
  | 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: 7c2876414a7bd0feed118388ab77dc7b9e1ea64836ceeae0f492fe67c9123138

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7849b8c29e99063a257288d84a99b91517ca83806e1e03092e8aae819377f5a4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AT",
    "submitted_at": "2015-07-19T11:33:30Z",
    "title_canon_sha256": "8a4346e4ce01e3347653699093294858e622a0fc25259e0e0fd6d33b9f676c63"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1507.05277",
    "kind": "arxiv",
    "version": 1
  }
}