Pith Number

pith:S2R6SUPJ

pith:2019:S2R6SUPJJGZ5GGCQ7XFG33RWUK

not attested not anchored not stored refs pending

The Calder\'on problem for a space-time fractional parabolic equation

Angkana R\"uland, Ru-Yu Lai, Yi-Hsuan Lin

arxiv:1905.08719 v1 · 2019-05-21 · 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{S2R6SUPJJGZ5GGCQ7XFG33RWUK}

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	2026-05-17T23:45:42.292440Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

96a3e951e949b3d31850fdca6dee36a2b82ae52207bc259081c3228c6dc40027

Aliases

arxiv: 1905.08719 · arxiv_version: 1905.08719v1 · doi: 10.48550/arxiv.1905.08719 · pith_short_12: S2R6SUPJJGZ5 · pith_short_16: S2R6SUPJJGZ5GGCQ · pith_short_8: S2R6SUPJ

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/S2R6SUPJJGZ5GGCQ7XFG33RWUK \
  | 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: 96a3e951e949b3d31850fdca6dee36a2b82ae52207bc259081c3228c6dc40027

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "03ff1ba87834d08d2487322c85e205b8066dba470c34f24c92339b28f45a3483",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2019-05-21T15:57:10Z",
    "title_canon_sha256": "e992211a0b5f1e60f7ebc2646de2eadd5fa9c9e428de143bec220bdf2405596e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1905.08719",
    "kind": "arxiv",
    "version": 1
  }
}