Pith Number

pith:44TNYTCA

pith:2015:44TNYTCAHZ4EMVBKUDCV73EYBR

not attested not anchored not stored refs pending

On a parabolic Hamilton-Jacobi-Bellman equation degenerating at the boundary

Annalisa Cesaroni, Daniele Castorina, Luca Rossi

arxiv:1509.00177 v2 · 2015-09-01 · 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{44TNYTCAHZ4EMVBKUDCV73EYBR}

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	2026-05-18T00:39:07.259109Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e726dc4c403e7846542aa0c55fec980c79eb75180f60d6d0b6eb8c13de6bac02

Aliases

arxiv: 1509.00177 · arxiv_version: 1509.00177v2 · doi: 10.48550/arxiv.1509.00177 · pith_short_12: 44TNYTCAHZ4E · pith_short_16: 44TNYTCAHZ4EMVBK · pith_short_8: 44TNYTCA

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/44TNYTCAHZ4EMVBKUDCV73EYBR \
  | 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: e726dc4c403e7846542aa0c55fec980c79eb75180f60d6d0b6eb8c13de6bac02

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d26be20e8f07922e68bac754f69e1c7e9d03949ebbddfc91204e9be0f4b3f899",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2015-09-01T08:36:47Z",
    "title_canon_sha256": "b6e304945eaeeead96e009546fd402c33f20d3e6ce76ffbf85fef5519b66f378"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1509.00177",
    "kind": "arxiv",
    "version": 2
  }
}