Pith Number

pith:IDSW4OHY

pith:2019:IDSW4OHYAP2QZELXWP6L6MNHKH

not attested not anchored not stored refs pending

Time-Fractional Allen-Cahn Equations: Analysis and Numerical Methods

Jiang Yang, Qiang Du, Zhi Zhou

arxiv:1906.06584 v1 · 2019-06-15 · math.NA · cs.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{IDSW4OHYAP2QZELXWP6L6MNHKH}

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	2026-05-17T23:43:13.287829Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

40e56e38f803f50c9177b3fcbf31a751df785ece0c2117b363f6e8450a9eff5d

Aliases

arxiv: 1906.06584 · arxiv_version: 1906.06584v1 · doi: 10.48550/arxiv.1906.06584 · pith_short_12: IDSW4OHYAP2Q · pith_short_16: IDSW4OHYAP2QZELX · pith_short_8: IDSW4OHY

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/IDSW4OHYAP2QZELXWP6L6MNHKH \
  | 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: 40e56e38f803f50c9177b3fcbf31a751df785ece0c2117b363f6e8450a9eff5d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ba1dffe9ad86758035a8c9ab432ac0d1d4cd68019cbbc789daf3fa7b07ad0a74",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2019-06-15T16:13:25Z",
    "title_canon_sha256": "6b711fcb0f2bb4de347a0aa303cfae8529191e151ba555291958a117fa7d7933"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1906.06584",
    "kind": "arxiv",
    "version": 1
  }
}