Pith Number

pith:WBJU5W7O

pith:2014:WBJU5W7OW3PHIPJ5EYP3X7SGSY

not attested not anchored not stored refs pending

Uniqueness for inverse problems of determining orders of multi-term time-fractional derivatives of diffusion equation

Masahiro Yamamoto, Zhiyuan Li

arxiv:1403.1721 v2 · 2014-03-07 · 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{WBJU5W7OW3PHIPJ5EYP3X7SGSY}

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	2026-05-17T23:48:48.089161Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b0534edbeeb6de743d3d261fbbfe46962e1872578610e068c7a51e77a24ee3b2

Aliases

arxiv: 1403.1721 · arxiv_version: 1403.1721v2 · doi: 10.48550/arxiv.1403.1721 · pith_short_12: WBJU5W7OW3PH · pith_short_16: WBJU5W7OW3PHIPJ5 · pith_short_8: WBJU5W7O

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/WBJU5W7OW3PHIPJ5EYP3X7SGSY \
  | 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: b0534edbeeb6de743d3d261fbbfe46962e1872578610e068c7a51e77a24ee3b2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3f2d3d8f79565876cbd46c98299744280c0a8366e098b45c5df0be34d9ed6144",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2014-03-07T11:18:02Z",
    "title_canon_sha256": "2ff0d41dd9b5ed88d6ef6dd9289bc990a6e65f9aa5b27cad0743a74b076eab7c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1403.1721",
    "kind": "arxiv",
    "version": 2
  }
}