Pith Number

pith:HGDI5JVS

pith:2009:HGDI5JVSZXVVJS2CORSST26P7P

not attested not anchored not stored refs pending

Degenerate elliptic operators in one dimension

Adam Sikora, Derek W. Robinson

arxiv:0909.0567 v1 · 2009-09-03 · 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{HGDI5JVSZXVVJS2CORSST26P7P}

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	2026-05-18T03:03:33.138013Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

39868ea6b2cdeb54cb42746529ebcffbfd56cd459bacf3f662c353af0af75849

Aliases

arxiv: 0909.0567 · arxiv_version: 0909.0567v1 · doi: 10.48550/arxiv.0909.0567 · pith_short_12: HGDI5JVSZXVV · pith_short_16: HGDI5JVSZXVVJS2C · pith_short_8: HGDI5JVS

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/HGDI5JVSZXVVJS2CORSST26P7P \
  | 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: 39868ea6b2cdeb54cb42746529ebcffbfd56cd459bacf3f662c353af0af75849

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "07ed404924a5ef4b4f1e8771b4426ddb0b35df64090e54b443b664e90933d4e2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2009-09-03T04:01:19Z",
    "title_canon_sha256": "6c1d43c74cfbd17b1207233dd4602e70cdf242c0b96e47b625777e7e8ef8fc2f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0909.0567",
    "kind": "arxiv",
    "version": 1
  }
}