Pith Number

pith:IFT7O5YU

pith:2014:IFT7O5YU7XWRNSK7NDCTTV4KBM

not attested not anchored not stored refs pending

Investigation graph isomorphism problem via entanglement entropy in strongly regular graphs

F. Eghbalifam, M. A. Jafarizadeh, S. Nami

arxiv:1407.4041 v1 · 2014-07-15 · quant-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{IFT7O5YU7XWRNSK7NDCTTV4KBM}

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	2026-05-18T00:56:53.195806Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4167f77714fded16c95f68c539d78a0b297e55c78a5955568254c7a58bbd219f

Aliases

arxiv: 1407.4041 · arxiv_version: 1407.4041v1 · doi: 10.48550/arxiv.1407.4041 · pith_short_12: IFT7O5YU7XWR · pith_short_16: IFT7O5YU7XWRNSK7 · pith_short_8: IFT7O5YU

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/IFT7O5YU7XWRNSK7NDCTTV4KBM \
  | 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: 4167f77714fded16c95f68c539d78a0b297e55c78a5955568254c7a58bbd219f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0a3900e68525f2cb9e63d2d2f567dba79f99afad312e2f63e5387c625e67b34d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2014-07-15T16:12:52Z",
    "title_canon_sha256": "36af68c21b07a74acac243b8396a184b239b6e2104a310c868f02eb7d6368af9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1407.4041",
    "kind": "arxiv",
    "version": 1
  }
}