Pith Number

pith:7IS4FBDS

pith:2017:7IS4FBDS3KNU2ML6HKIKQ2SUOX

not attested not anchored not stored refs pending

Extinction for a singular diffusion equation with strong gradient absorption revisited

Philippe Lauren\c{c}ot (IMT), Razvan Iagar (ICMAT)

arxiv:1711.09719 v1 · 2017-11-27 · 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{7IS4FBDS3KNU2ML6HKIKQ2SUOX}

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	2026-05-18T00:29:34.717934Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fa25c28472da9b4d317e3a90a86a5475dfbd92901a1ba101348c82219f13e8f4

Aliases

arxiv: 1711.09719 · arxiv_version: 1711.09719v1 · doi: 10.48550/arxiv.1711.09719 · pith_short_12: 7IS4FBDS3KNU · pith_short_16: 7IS4FBDS3KNU2ML6 · pith_short_8: 7IS4FBDS

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/7IS4FBDS3KNU2ML6HKIKQ2SUOX \
  | 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: fa25c28472da9b4d317e3a90a86a5475dfbd92901a1ba101348c82219f13e8f4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "67ed1c422d06bf568c885ad00a40a8d44d37bd1a4fb9d578ee945e959f3b45bf",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2017-11-27T14:48:33Z",
    "title_canon_sha256": "151575117d410119b2eded1d79ef9facf721e328c47e5e237152c24e40680b92"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1711.09719",
    "kind": "arxiv",
    "version": 1
  }
}