Pith Number

pith:7HP2K7TC

pith:2019:7HP2K7TCZDPQGU2GCTDMOAZGCA

not attested not anchored not stored refs pending

Time-periodic solutions of Hamiltonian PDEs using pseudoholomorphic curves

Niek Lamoree, Oliver Fabert

arxiv:1908.03165 v4 · 2019-08-08 · math.SG · 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{7HP2K7TCZDPQGU2GCTDMOAZGCA}

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	2026-07-05T05:57:51.434438Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f9dfa57e62c8df03534614c6c70326102f8ae9aef20198a3551e5bde8f56a46b

Aliases

arxiv: 1908.03165 · arxiv_version: 1908.03165v4 · doi: 10.48550/arxiv.1908.03165 · pith_short_12: 7HP2K7TCZDPQ · pith_short_16: 7HP2K7TCZDPQGU2G · pith_short_8: 7HP2K7TC

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/7HP2K7TCZDPQGU2GCTDMOAZGCA \
  | 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: f9dfa57e62c8df03534614c6c70326102f8ae9aef20198a3551e5bde8f56a46b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "983c252b6a3c8a14153cff0d2383f25d2d6e85c9f5811bfc905b00be84ee4a14",
    "cross_cats_sorted": [
      "math.AP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.SG",
    "submitted_at": "2019-08-08T16:56:06Z",
    "title_canon_sha256": "1d94be452cc4c6d7f8e041087d57974446278b90bd1518a52a9cf3641e972298"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.03165",
    "kind": "arxiv",
    "version": 4
  }
}