Pith Number

pith:POQLDEYF

pith:2016:POQLDEYFTZMW6A7HDYVWGDGWNO

not attested not anchored not stored refs pending

An SSD-based eigensolver for spectral analysis on billion-node graphs

Alexander S. Szalay, Carey E. Priebe, Da Zheng, Joshua Vogelstein, Randal Burns

arxiv:1602.01421 v3 · 2016-02-03 · cs.DC · cs.MS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{POQLDEYFTZMW6A7HDYVWGDGWNO}

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	2026-05-18T01:19:56.946831Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7ba0b193059e596f03e71e2b630cd66bb4b5128ae63f27e7d95687e8dc5f36d8

Aliases

arxiv: 1602.01421 · arxiv_version: 1602.01421v3 · doi: 10.48550/arxiv.1602.01421 · pith_short_12: POQLDEYFTZMW · pith_short_16: POQLDEYFTZMW6A7H · pith_short_8: POQLDEYF

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/POQLDEYFTZMW6A7HDYVWGDGWNO \
  | 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: 7ba0b193059e596f03e71e2b630cd66bb4b5128ae63f27e7d95687e8dc5f36d8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "baf7b503d6ec5d0605c5415289cab22eaaa43125031a791430e29f319302541a",
    "cross_cats_sorted": [
      "cs.MS"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DC",
    "submitted_at": "2016-02-03T19:23:44Z",
    "title_canon_sha256": "f5f7f652c169bdf9bd787535eddcb6dc8b38c1bf334ebdecab3ebb585483db44"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1602.01421",
    "kind": "arxiv",
    "version": 3
  }
}