Pith Number

pith:AT3GBXI6

pith:2018:AT3GBXI6LGQLPHJ7UCVQCYSMTW

not attested not anchored not stored refs pending

Solving systems of multi-term fractional PDEs: Invariant subspace approach

Sangita Choudhary, Varsha Daftardar-Gejji

arxiv:1805.01225 v1 · 2018-05-03 · math.AP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{AT3GBXI6LGQLPHJ7UCVQCYSMTW}

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	2026-05-17T23:49:52.912152Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

04f660dd1e59a0b79d3fa0ab01624c9d9759ba94780d7d39030922416ab78f4a

Aliases

arxiv: 1805.01225 · arxiv_version: 1805.01225v1 · doi: 10.48550/arxiv.1805.01225 · pith_short_12: AT3GBXI6LGQL · pith_short_16: AT3GBXI6LGQLPHJ7 · pith_short_8: AT3GBXI6

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/AT3GBXI6LGQLPHJ7UCVQCYSMTW \
  | 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: 04f660dd1e59a0b79d3fa0ab01624c9d9759ba94780d7d39030922416ab78f4a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "16cb5f23df82233b2f3cfc6d1d781b3c40746e7083623a5c51355f0e9c320d53",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2018-05-03T11:11:57Z",
    "title_canon_sha256": "027a96a392bf89322e17e7664df791e2c9bc3692af4160e360033879e44cc7fa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.01225",
    "kind": "arxiv",
    "version": 1
  }
}