Pith Number

pith:57OQVNU2

pith:2015:57OQVNU2UMIYIE3YQU5KLBLJPR

not attested not anchored not stored refs pending

Six mathematical gems from the history of Distance Geometry

Carlile Lavor, Leo Liberti

arxiv:1502.02816 v1 · 2015-02-10 · math.HO · math.CO · math.MG · math.OC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{57OQVNU2UMIYIE3YQU5KLBLJPR}

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	2026-05-18T02:27:30.833968Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

efdd0ab69aa311841378853aa585697c66b1f993de1a1f58ee313e2adb338719

Aliases

arxiv: 1502.02816 · arxiv_version: 1502.02816v1 · doi: 10.48550/arxiv.1502.02816 · pith_short_12: 57OQVNU2UMIY · pith_short_16: 57OQVNU2UMIYIE3Y · pith_short_8: 57OQVNU2

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/57OQVNU2UMIYIE3YQU5KLBLJPR \
  | 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: efdd0ab69aa311841378853aa585697c66b1f993de1a1f58ee313e2adb338719

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d35b3cbd5d8f806113680f23ac3beb63972669d6538451b47417b4d00de0bab0",
    "cross_cats_sorted": [
      "math.CO",
      "math.MG",
      "math.OC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.HO",
    "submitted_at": "2015-02-10T09:07:18Z",
    "title_canon_sha256": "ba2343f1808c0a46f26ce2dc8bb4885d8c487ed72b14fa10ddc932acc852b3e3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1502.02816",
    "kind": "arxiv",
    "version": 1
  }
}