Pith Number

pith:PVRPGR7W

pith:2011:PVRPGR7WBFJPMMG7VWBK2IIJBA

not attested not anchored not stored refs pending

Eccentric connectivity index

Aleksandar Ili\'c

arxiv:1103.2515 v1 · 2011-03-13 · 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{PVRPGR7WBFJPMMG7VWBK2IIJBA}

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	2026-05-18T02:22:19.637183Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7d62f347f60952f630dfad82ad21090810f3da3004e89665d811e7d603ef506c

Aliases

arxiv: 1103.2515 · arxiv_version: 1103.2515v1 · doi: 10.48550/arxiv.1103.2515 · pith_short_12: PVRPGR7WBFJP · pith_short_16: PVRPGR7WBFJPMMG7 · pith_short_8: PVRPGR7W

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/PVRPGR7WBFJPMMG7VWBK2IIJBA \
  | 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: 7d62f347f60952f630dfad82ad21090810f3da3004e89665d811e7d603ef506c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0cdf21ae26e35282ad8b300b9a1952fef11452c7c838f1f4d9475e1addcc19cd",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2011-03-13T13:00:46Z",
    "title_canon_sha256": "02a445f9315bc12a70e175873a3f7a34abf72a124171870f8edc164de3efe3a0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1103.2515",
    "kind": "arxiv",
    "version": 1
  }
}