Pith Number

pith:TGMJMOXK

pith:2019:TGMJMOXKDEZSJ5OEWZQLNLX7QU

not attested not anchored not stored refs pending

Inverse Problems of Determining Coefficients of the Fractional Partial Differential Equations

Masahiro Yamamoto, Zhiyuan Li

arxiv:1904.05505 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{TGMJMOXKDEZSJ5OEWZQLNLX7QU}

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	2026-05-17T23:48:44.846794Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9998963aea193324f5c4b660b6aeff853fcb67b16c05b88e5954d7485f764355

Aliases

arxiv: 1904.05505 · arxiv_version: 1904.05505v1 · doi: 10.48550/arxiv.1904.05505 · pith_short_12: TGMJMOXKDEZS · pith_short_16: TGMJMOXKDEZSJ5OE · pith_short_8: TGMJMOXK

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/TGMJMOXKDEZSJ5OEWZQLNLX7QU \
  | 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: 9998963aea193324f5c4b660b6aeff853fcb67b16c05b88e5954d7485f764355

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "877cf126d0f655442d4d28a7b009f38faa383d0123b7d1ab2634448b5881a839",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2019-04-11T02:49:35Z",
    "title_canon_sha256": "2aa9d5ad6ba4f958fddc9d17f315f5c8ae4d7f4ce2f04f4b4cd8c328e4e37bb6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.05505",
    "kind": "arxiv",
    "version": 1
  }
}