Pith Number

pith:ZIY23DAP

pith:2015:ZIY23DAPWYAWEOGNCYZ6FNORHS

not attested not anchored not stored refs pending

Parameter-free Topology Inference and Sparsification for Data on Manifolds

Tamal K. Dey, Yusu Wang, Zhe Dong

arxiv:1505.06462 v1 · 2015-05-24 · 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{ZIY23DAPWYAWEOGNCYZ6FNORHS}

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	2026-05-18T02:03:45.664294Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ca31ad8c0fb6016238cd1633e2b5d13c806a075eaffad98af75a7b581d9f4f52

Aliases

arxiv: 1505.06462 · arxiv_version: 1505.06462v1 · doi: 10.48550/arxiv.1505.06462 · pith_short_12: ZIY23DAPWYAW · pith_short_16: ZIY23DAPWYAWEOGN · pith_short_8: ZIY23DAP

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/ZIY23DAPWYAWEOGNCYZ6FNORHS \
  | 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: ca31ad8c0fb6016238cd1633e2b5d13c806a075eaffad98af75a7b581d9f4f52

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9f39e4acbecf80963a93e1ef760a9c8df44709fe448d06e803ca47a2fbbfa49f",
    "cross_cats_sorted": [
      "math.AT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CG",
    "submitted_at": "2015-05-24T17:44:06Z",
    "title_canon_sha256": "e45af0c20cb529afce8ced3f88640a7e8820b3721717640e1b01f8f7464f2eec"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1505.06462",
    "kind": "arxiv",
    "version": 1
  }
}