Pith Number

pith:AGLDJAPQ

pith:2015:AGLDJAPQZIIBLQZDAKE3JEAUJV

not attested not anchored not stored refs pending

Sparsifying preconditioner for soliton calculations

Jianfeng Lu, Lexing Ying

arxiv:1511.03756 v1 · 2015-11-12 · math.NA · physics.comp-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{AGLDJAPQZIIBLQZDAKE3JEAUJV}

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	2026-05-18T01:15:44.099674Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

01963481f0ca1015c3230289b490144d478a9cff95fb7fe2017bfda20106fe67

Aliases

arxiv: 1511.03756 · arxiv_version: 1511.03756v1 · doi: 10.48550/arxiv.1511.03756 · pith_short_12: AGLDJAPQZIIB · pith_short_16: AGLDJAPQZIIBLQZD · pith_short_8: AGLDJAPQ

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/AGLDJAPQZIIBLQZDAKE3JEAUJV \
  | 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: 01963481f0ca1015c3230289b490144d478a9cff95fb7fe2017bfda20106fe67

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "79d3b85191e47d8a20b7bb48f7d6ea90029ace9f1d3a08266b7437820f6b1dad",
    "cross_cats_sorted": [
      "physics.comp-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2015-11-12T02:09:30Z",
    "title_canon_sha256": "87e6d62e82868b1d696d111a08bbf17e3b77856ded762b988ddfd181622e3d6d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1511.03756",
    "kind": "arxiv",
    "version": 1
  }
}