Pith Number

pith:ET6HUYRZ

pith:2015:ET6HUYRZTI6BT7IZMJNJ7ZMCKI

not attested not anchored not stored refs pending

Distance Preserving Graphs

Emad Zahedi

arxiv:1507.03615 v1 · 2015-07-13 · math.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ET6HUYRZTI6BT7IZMJNJ7ZMCKI}

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	2026-05-18T01:36:57.807798Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

24fc7a62399a3c19fd19625a9fe582520c21f6ceadb93dba152a74e7a16216f9

Aliases

arxiv: 1507.03615 · arxiv_version: 1507.03615v1 · doi: 10.48550/arxiv.1507.03615 · pith_short_12: ET6HUYRZTI6B · pith_short_16: ET6HUYRZTI6BT7IZ · pith_short_8: ET6HUYRZ

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/ET6HUYRZTI6BT7IZMJNJ7ZMCKI \
  | 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: 24fc7a62399a3c19fd19625a9fe582520c21f6ceadb93dba152a74e7a16216f9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0f0dd913b8dae6c55937ed0ad14207b92a4f01608169ba12cd83b013b9c1bdfe",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2015-07-13T20:50:38Z",
    "title_canon_sha256": "9f58e0ee84b01515759686f40783bc931ea908fcbfdd3c3aaf410fc45879ff2b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1507.03615",
    "kind": "arxiv",
    "version": 1
  }
}