Pith Number

pith:BW7NX7YM

pith:2011:BW7NX7YMWQNQCNYCTIUD3FKKZ5

not attested not anchored not stored refs pending

Total Variation Flow and Sign Fast Diffusion in one dimension

Alessio Figalli, Matteo Bonforte

arxiv:1107.2153 v2 · 2011-07-11 · 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{BW7NX7YMWQNQCNYCTIUD3FKKZ5}

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	2026-05-18T04:15:18.440897Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0dbedbff0cb41b0137029a283d954acf78d7c88a6cd531326a577e2096433a7c

Aliases

arxiv: 1107.2153 · arxiv_version: 1107.2153v2 · doi: 10.48550/arxiv.1107.2153 · pith_short_12: BW7NX7YMWQNQ · pith_short_16: BW7NX7YMWQNQCNYC · pith_short_8: BW7NX7YM

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/BW7NX7YMWQNQCNYCTIUD3FKKZ5 \
  | 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: 0dbedbff0cb41b0137029a283d954acf78d7c88a6cd531326a577e2096433a7c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a5f25f9532a140c8f4cab45d55277097e8ef44785c29140c3b5211dfce57aca0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2011-07-11T21:41:37Z",
    "title_canon_sha256": "b0015b338b57476a4c0460edf121ab82dc1b53a72efd67ad4c2912ee9de8c7d2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1107.2153",
    "kind": "arxiv",
    "version": 2
  }
}