Pith Number

pith:VSMLBYZQ

pith:2017:VSMLBYZQTQNVPTIP5U5NKY6NQY

not attested not anchored not stored refs pending

Persistent Entropy for Separating Topological Features from Noise in Vietoris-Rips Complexes

Matteo Rucco, Nieves Atienza, Rocio Gonzalez-Diaz

arxiv:1701.07857 v1 · 2017-01-18 · cs.OH

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VSMLBYZQTQNVPTIP5U5NKY6NQY}

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	2026-05-18T00:51:59.523405Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ac98b0e3309c1b57cd0fed3ad563cd861a173141affea2a7a6885ca385ea5508

Aliases

arxiv: 1701.07857 · arxiv_version: 1701.07857v1 · doi: 10.48550/arxiv.1701.07857 · pith_short_12: VSMLBYZQTQNV · pith_short_16: VSMLBYZQTQNVPTIP · pith_short_8: VSMLBYZQ

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/VSMLBYZQTQNVPTIP5U5NKY6NQY \
  | 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: ac98b0e3309c1b57cd0fed3ad563cd861a173141affea2a7a6885ca385ea5508

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ef1cfd69c97f7b4872a2c106ba86b5420273203e0557be568d351dbbf7e1e1ee",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.OH",
    "submitted_at": "2017-01-18T12:27:20Z",
    "title_canon_sha256": "9dff003b5d40c688c1a66b2c413d5cddae3c4568d81754f297f87306e0d102a0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1701.07857",
    "kind": "arxiv",
    "version": 1
  }
}