Pith Number

pith:U4TXELCS

pith:2019:U4TXELCSJSAQJJHLFKVC6VTCQN

not attested not anchored not stored refs pending

Geodesics in persistence diagram space

Samir Chowdhury

arxiv:1905.10820 v1 · 2019-05-26 · math.MG · 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{U4TXELCSJSAQJJHLFKVC6VTCQN}

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	2026-05-17T23:45:05.187754Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a727722c524c8104a4eb2aaa2f56628361aa9ad316465de15100c42d5888fe04

Aliases

arxiv: 1905.10820 · arxiv_version: 1905.10820v1 · doi: 10.48550/arxiv.1905.10820 · pith_short_12: U4TXELCSJSAQ · pith_short_16: U4TXELCSJSAQJJHL · pith_short_8: U4TXELCS

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/U4TXELCSJSAQJJHLFKVC6VTCQN \
  | 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: a727722c524c8104a4eb2aaa2f56628361aa9ad316465de15100c42d5888fe04

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "30ad4b738200c6fc1dd1d59523a62eb56d02cef28ae945233653ea0c4faffaab",
    "cross_cats_sorted": [
      "cs.CG",
      "math.AT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.MG",
    "submitted_at": "2019-05-26T15:46:11Z",
    "title_canon_sha256": "712d8e4310b6d1453afdb98872b592eba93e9225299f4a66973ecf1a559a3b74"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1905.10820",
    "kind": "arxiv",
    "version": 1
  }
}