Pith Number

pith:HPWPG5JD

pith:2020:HPWPG5JDKYGENNJUPOTY4IQ5KH

not attested not anchored not stored refs pending

Kernel Ordinary Differential Equations

Lexin Li, Xiaowu Dai

arxiv:2008.02915 v2 · 2020-08-07 · stat.ME

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HPWPG5JDKYGENNJUPOTY4IQ5KH}

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	2026-07-05T03:24:54.982815Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3becf37523560c46b5347ba78e221d51f068308a5df977374115f9d570785ae3

Aliases

arxiv: 2008.02915 · arxiv_version: 2008.02915v2 · doi: 10.48550/arxiv.2008.02915 · pith_short_12: HPWPG5JDKYGE · pith_short_16: HPWPG5JDKYGENNJU · pith_short_8: HPWPG5JD

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/HPWPG5JDKYGENNJUPOTY4IQ5KH \
  | 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: 3becf37523560c46b5347ba78e221d51f068308a5df977374115f9d570785ae3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "eacf1309731e301b8dba0fe35c584e94d7f563e73065d2ad4cf12455c74c467d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ME",
    "submitted_at": "2020-08-07T00:24:29Z",
    "title_canon_sha256": "943894f87eaf943486a674c24c7cc867fc591b113d6ee066e3d2ecebb74dba00"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2008.02915",
    "kind": "arxiv",
    "version": 2
  }
}