Pith Number

pith:CQMNI5PY

pith:2018:CQMNI5PYXMBBX7WD2YWZIQE2MW

not attested not anchored not stored refs pending

On the geometrical properties of the coherent matching distance in 2D persistent homology

Andrea Cerri, Marc Ethier, Patrizio Frosini

arxiv:1801.06636 v2 · 2018-01-20 · math.AT · cs.CG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CQMNI5PYXMBBX7WD2YWZIQE2MW}

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	2026-05-18T00:14:53.902807Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1418d475f8bb021bfec3d62d94409a65a9239478113b02728205598415ae9d60

Aliases

arxiv: 1801.06636 · arxiv_version: 1801.06636v2 · doi: 10.48550/arxiv.1801.06636 · pith_short_12: CQMNI5PYXMBB · pith_short_16: CQMNI5PYXMBBX7WD · pith_short_8: CQMNI5PY

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/CQMNI5PYXMBBX7WD2YWZIQE2MW \
  | 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: 1418d475f8bb021bfec3d62d94409a65a9239478113b02728205598415ae9d60

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "616c24b4e3085277096e70cdd73b94f930571e7000a245ce4fcb1f21512f3bf2",
    "cross_cats_sorted": [
      "cs.CG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AT",
    "submitted_at": "2018-01-20T07:13:11Z",
    "title_canon_sha256": "b6ff1fe3d81dc28a6b62fba886b5ef14c7e26686c70f075f67db1a5977b8f028"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.06636",
    "kind": "arxiv",
    "version": 2
  }
}