Pith Number

pith:PR7VWVT5

pith:2019:PR7VWVT5ZU3ZZ7SRRFVLQYJJLS

not attested not anchored not stored refs pending

An inverse random source problem for the time fractional diffusion equation driven by a fractional Brownian motion

Peijun Li, Xiaoli Feng, Xu Wang

arxiv:1908.03666 v1 · 2019-08-10 · 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{PR7VWVT5ZU3ZZ7SRRFVLQYJJLS}

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	2026-07-05T00:56:29.594337Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7c7f5b567dcd379cfe51896ab861295cb00ef6dc290736cd624a665b15e5d6fc

Aliases

arxiv: 1908.03666 · arxiv_version: 1908.03666v1 · doi: 10.48550/arxiv.1908.03666 · pith_short_12: PR7VWVT5ZU3Z · pith_short_16: PR7VWVT5ZU3ZZ7SR · pith_short_8: PR7VWVT5

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/PR7VWVT5ZU3ZZ7SRRFVLQYJJLS \
  | 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: 7c7f5b567dcd379cfe51896ab861295cb00ef6dc290736cd624a665b15e5d6fc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c33ff33bcb46c66bc9e97ee26894cf735d4851e08855a2692cb48e1f5443a78e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2019-08-10T02:00:52Z",
    "title_canon_sha256": "1ec40debb554e5b1e1674bc60f855d47f53a3832e1f7e36bdaaaa6d3861ac4bb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.03666",
    "kind": "arxiv",
    "version": 1
  }
}