Pith Number

pith:HQYPFM6M

pith:2018:HQYPFM6M6ZW4BR52V2U7VMPYHE

not attested not anchored not stored refs pending

On Spectral Graph Embedding: A Non-Backtracking Perspective and Graph Approximation

Enqiang Zhu, Fei Jiang, Jin Xu, Lifang He, Philip S. Yu, Yi Zheng

arxiv:1801.05855 v1 · 2018-01-01 · cs.SI · cs.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HQYPFM6M6ZW4BR52V2U7VMPYHE}

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	2026-05-18T00:25:36.432386Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3c30f2b3ccf66dc0c7baaea9fab1f8390f5c4481f907085fce543a32f00a1f6a

Aliases

arxiv: 1801.05855 · arxiv_version: 1801.05855v1 · doi: 10.48550/arxiv.1801.05855 · pith_short_12: HQYPFM6M6ZW4 · pith_short_16: HQYPFM6M6ZW4BR52 · pith_short_8: HQYPFM6M

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/HQYPFM6M6ZW4BR52V2U7VMPYHE \
  | 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: 3c30f2b3ccf66dc0c7baaea9fab1f8390f5c4481f907085fce543a32f00a1f6a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8766fb0319a10b23fd53c82e4788d3d8b1f01b087623f68f85ebf8aa0e306b0f",
    "cross_cats_sorted": [
      "cs.DS"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SI",
    "submitted_at": "2018-01-01T19:11:54Z",
    "title_canon_sha256": "83ab827248d2aff80f3d85ef1e80769e26db7343ef164b1de826fcfb16c89c6a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.05855",
    "kind": "arxiv",
    "version": 1
  }
}