Pith Number

pith:JYBFW3JC

pith:2019:JYBFW3JCK7AMGEHM57YJ5QZHKR

not attested not anchored not stored refs pending

Inverse Problems of Determining Parameters of the Fractional Partial Differential Equations

Masahiro Yamamoto, Yikan Liu, Zhiyuan Li

arxiv:1904.05502 v1 · 2019-04-11 · 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{JYBFW3JCK7AMGEHM57YJ5QZHKR}

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	2026-05-17T23:48:44.853097Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4e025b6d2257c0c310eceff09ec327546e25342d46d068a682bc858cb9276f71

Aliases

arxiv: 1904.05502 · arxiv_version: 1904.05502v1 · doi: 10.48550/arxiv.1904.05502 · pith_short_12: JYBFW3JCK7AM · pith_short_16: JYBFW3JCK7AMGEHM · pith_short_8: JYBFW3JC

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/JYBFW3JCK7AMGEHM57YJ5QZHKR \
  | 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: 4e025b6d2257c0c310eceff09ec327546e25342d46d068a682bc858cb9276f71

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "21a6e0a677cb1a3cc188d73fdc9485d2b92a1effae38cf1ed29f620123e2e375",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2019-04-11T02:42:55Z",
    "title_canon_sha256": "29cc52201da8fbee82ec5d2504426e7f5394ce862985a56af4180b5d13225b76"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.05502",
    "kind": "arxiv",
    "version": 1
  }
}