Pith Number

pith:7NKZDOI6

pith:2015:7NKZDOI6EZGCRLWEHIJCDSUIZQ

not attested not anchored not stored refs pending

Conservation laws and symmetries of Hunter-Saxton equation: revisited

Kai Tian, Q. P. Liu

arxiv:1501.03666 v1 · 2015-01-15 · nlin.SI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7NKZDOI6EZGCRLWEHIJCDSUIZQ}

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	2026-05-18T01:20:47.127466Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fb5591b91e264c28aec43a1221ca88cc07a0d6bf4bf756368c2175954c7536f2

Aliases

arxiv: 1501.03666 · arxiv_version: 1501.03666v1 · doi: 10.48550/arxiv.1501.03666 · pith_short_12: 7NKZDOI6EZGC · pith_short_16: 7NKZDOI6EZGCRLWE · pith_short_8: 7NKZDOI6

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/7NKZDOI6EZGCRLWEHIJCDSUIZQ \
  | 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: fb5591b91e264c28aec43a1221ca88cc07a0d6bf4bf756368c2175954c7536f2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "752292be2427c0454ab5129f23798e4d88baab991a9b8981d05716fc1fe72acd",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "nlin.SI",
    "submitted_at": "2015-01-15T13:17:47Z",
    "title_canon_sha256": "42e4f43a82c2000cf56bf27d5a76d0686c66cef7e298ce10db65088ba94ccbff"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1501.03666",
    "kind": "arxiv",
    "version": 1
  }
}