Pith Number

pith:OBYETUTB

pith:2012:OBYETUTB3SQYGOFORBSUBMNYWL

not attested not anchored not stored refs pending

On Neumann boundary problem for strongly degenerate parabolic-hyperbolic equations on a bounded rectangle

Yachun Li, Yuxi Hu

arxiv:1205.4566 v2 · 2012-05-21 · 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{OBYETUTB3SQYGOFORBSUBMNYWL}

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	2026-05-18T02:48:10.198654Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

707049d261dca18338ae886540b1b8b2f7b7bbe8a424a7350f07210d282542fe

Aliases

arxiv: 1205.4566 · arxiv_version: 1205.4566v2 · doi: 10.48550/arxiv.1205.4566 · pith_short_12: OBYETUTB3SQY · pith_short_16: OBYETUTB3SQYGOFO · pith_short_8: OBYETUTB

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/OBYETUTB3SQYGOFORBSUBMNYWL \
  | 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: 707049d261dca18338ae886540b1b8b2f7b7bbe8a424a7350f07210d282542fe

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d3e89d5d1e770a39a1ee7f776d8cb8136c41f7534ac35ca5ac42c157ab821ab4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2012-05-21T11:40:13Z",
    "title_canon_sha256": "3916787d945b37078180bd173cb41573f9a99728a3acf87c7cb5ee46bba31c92"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1205.4566",
    "kind": "arxiv",
    "version": 2
  }
}