Pith Number

pith:PJ56DFHT

pith:2016:PJ56DFHT3OPPT6XXGDHPASPINV

not attested not anchored not stored refs pending

A conjugate gradient method for electronic structure calculations

Aihui Zhou, Liwei Zhang, Xiaoying Dai, Zhuang Liu

arxiv:1601.07676 v6 · 2016-01-28 · 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{PJ56DFHT3OPPT6XXGDHPASPINV}

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	2026-05-18T00:36:33.465387Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7a7be194f3db9ef9faf730cef049e86d72123c55052e7171ec66c532f1f02e9a

Aliases

arxiv: 1601.07676 · arxiv_version: 1601.07676v6 · doi: 10.48550/arxiv.1601.07676 · pith_short_12: PJ56DFHT3OPP · pith_short_16: PJ56DFHT3OPPT6XX · pith_short_8: PJ56DFHT

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/PJ56DFHT3OPPT6XXGDHPASPINV \
  | 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: 7a7be194f3db9ef9faf730cef049e86d72123c55052e7171ec66c532f1f02e9a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "495a40780c94ce4323b5ae3e58be26d8daf083af1bbbaf3a9f728fe3144f79a1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2016-01-28T07:51:35Z",
    "title_canon_sha256": "03c4111ed91fbe878bac3b5be7b333340f037c501b8480c1d3ec39bca892e136"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1601.07676",
    "kind": "arxiv",
    "version": 6
  }
}