Pith Number

pith:SFU6OL5J

pith:2018:SFU6OL5J2EH7QQYPML2H5EP5S2

not attested not anchored not stored refs pending

Doubling algorithm for the discretized Bethe-Salpeter eigenvalue problem

Eric King-wah Chu, Wen-Wei Lin, Zhen-Chen Guo

arxiv:1801.00900 v1 · 2018-01-03 · math.NA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SFU6OL5J2EH7QQYPML2H5EP5S2}

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	2026-05-18T00:26:48.452528Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9169e72fa9d10ff8430f62f47e91fd96ba42d633bef87b4292002f8fde2dc17f

Aliases

arxiv: 1801.00900 · arxiv_version: 1801.00900v1 · doi: 10.48550/arxiv.1801.00900 · pith_short_12: SFU6OL5J2EH7 · pith_short_16: SFU6OL5J2EH7QQYP · pith_short_8: SFU6OL5J

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/SFU6OL5J2EH7QQYPML2H5EP5S2 \
  | 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: 9169e72fa9d10ff8430f62f47e91fd96ba42d633bef87b4292002f8fde2dc17f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dfbb5ccfc6fa7cc9403dd5fd308f887817a99f31d1fed394a5f6fe5c5d06fd41",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2018-01-03T05:21:47Z",
    "title_canon_sha256": "e73701b3b6adb448517c6f0d9ece1c540ed67cda6cd3eac2f7ea2e586f774556"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.00900",
    "kind": "arxiv",
    "version": 1
  }
}