Pith Number

pith:XA3GINK6

pith:2015:XA3GINK67UOKZ4CO7KS24DHIAU

not attested not anchored not stored refs pending

Numerical methods and comparison for the Dirac equation in the nonrelativistic limit regime

Qinglin Tang, Weizhu Bao, Xiaowei Jiao, Yongyong Cai

arxiv:1504.02881 v2 · 2015-04-11 · 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{XA3GINK67UOKZ4CO7KS24DHIAU}

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	2026-05-18T00:30:18.040913Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b83664355efd1cacf04efaa5ae0ce8052ef800c4a14be545bc42afce10070846

Aliases

arxiv: 1504.02881 · arxiv_version: 1504.02881v2 · doi: 10.48550/arxiv.1504.02881 · pith_short_12: XA3GINK67UOK · pith_short_16: XA3GINK67UOKZ4CO · pith_short_8: XA3GINK6

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/XA3GINK67UOKZ4CO7KS24DHIAU \
  | 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: b83664355efd1cacf04efaa5ae0ce8052ef800c4a14be545bc42afce10070846

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "87f530f82e0ba2bc412cd2322a993ab4e133c12c42d6fd1ff1a429ab290ae937",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2015-04-11T14:28:15Z",
    "title_canon_sha256": "24bce6c5618da05fb75ac7521bfa5fcce1b5d6d5d4b3c567e6f10a024de73746"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.02881",
    "kind": "arxiv",
    "version": 2
  }
}