Pith Number

pith:WRZREAGO

pith:2014:WRZREAGOEMIYXCSEDNBEZMJGX6

not attested not anchored not stored refs pending

A Sketching Algorithm for Spectral Graph Sparsification

Bo Qin, David P. Woodruff, Jiecao Chen, Qin Zhang

arxiv:1412.8225 v1 · 2014-12-28 · 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{WRZREAGOEMIYXCSEDNBEZMJGX6}

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	2026-05-18T02:30:23.743336Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b4731200ce23118b8a441b424cb126bfa51c4e46fb392d8a1fdfae04e460422f

Aliases

arxiv: 1412.8225 · arxiv_version: 1412.8225v1 · doi: 10.48550/arxiv.1412.8225 · pith_short_12: WRZREAGOEMIY · pith_short_16: WRZREAGOEMIYXCSE · pith_short_8: WRZREAGO

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/WRZREAGOEMIYXCSEDNBEZMJGX6 \
  | 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: b4731200ce23118b8a441b424cb126bfa51c4e46fb392d8a1fdfae04e460422f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dbd5e42b084f7dc6ba2cd04eebfb7821d45057ecdf2ebf3ce3874231951df5a2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2014-12-28T23:22:42Z",
    "title_canon_sha256": "ff306a72bb0b8d198ff210819659ca71224032c7e29188e8e5e43935f2bd0b7d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1412.8225",
    "kind": "arxiv",
    "version": 1
  }
}