Pith Number

pith:I73JWWID

pith:2017:I73JWWIDTVLZGMJLSGYLZAS4KA

not attested not anchored not stored refs pending

Computing Reformulated First Zagreb Index of Some Chemical Graphs as an Application of Generalized Hierarchical Product of Graphs

Nilanjan De

arxiv:1704.05476 v1 · 2017-04-18 · cs.DM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{I73JWWIDTVLZGMJLSGYLZAS4KA}

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	2026-05-18T00:46:07.325695Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

47f69b59039d5793312b91b0bc825c5027e4267118903eb7daf71b3d1e460d9b

Aliases

arxiv: 1704.05476 · arxiv_version: 1704.05476v1 · doi: 10.48550/arxiv.1704.05476 · pith_short_12: I73JWWIDTVLZ · pith_short_16: I73JWWIDTVLZGMJL · pith_short_8: I73JWWID

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/I73JWWIDTVLZGMJLSGYLZAS4KA \
  | 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: 47f69b59039d5793312b91b0bc825c5027e4267118903eb7daf71b3d1e460d9b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c8641c276d27d167971aabf6fbeff1fceeedd4165aec00920f213893ef811478",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DM",
    "submitted_at": "2017-04-18T18:02:39Z",
    "title_canon_sha256": "95b7ab89a6e872a5cfa50d0ee0e309769e641417937706187e6e5f8607b51424"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1704.05476",
    "kind": "arxiv",
    "version": 1
  }
}