Pith Number

pith:34PBQGSE

pith:2015:34PBQGSE4KKS3Q4TQUOK5723SL

not attested not anchored not stored refs pending

Non-existence and instantaneous extinction of solutions for singular nonlinear fractional diffusion equations

Antonio Segatti, Juan Luis Vazquez, Matteo Bonforte

arxiv:1505.03167 v1 · 2015-05-12 · 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{34PBQGSE4KKS3Q4TQUOK5723SL}

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	2026-05-18T02:12:10.318438Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

df1e181a44e2952dc393851caeff5b92cc7b455aef610a8dd99b6d5e39c3c670

Aliases

arxiv: 1505.03167 · arxiv_version: 1505.03167v1 · doi: 10.48550/arxiv.1505.03167 · pith_short_12: 34PBQGSE4KKS · pith_short_16: 34PBQGSE4KKS3Q4T · pith_short_8: 34PBQGSE

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/34PBQGSE4KKS3Q4TQUOK5723SL \
  | 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: df1e181a44e2952dc393851caeff5b92cc7b455aef610a8dd99b6d5e39c3c670

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8751b631e03fb82eb4a2acfc886a999152e708bf9b9a4b372cd23fd609bde402",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2015-05-12T21:06:56Z",
    "title_canon_sha256": "8ed3181e617fd771183fe6c332152991ad6224229d9348779b70258758827678"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1505.03167",
    "kind": "arxiv",
    "version": 1
  }
}