Pith Number

pith:BHNCMV2E

pith:2009:BHNCMV2EQRPCM5DTP66MSJI6JH

not attested not anchored not stored refs pending

On the Space of KdV Fields

Atsushi Nakayashiki

arxiv:0904.0501 v1 · 2009-04-03 · math-ph · math.MP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BHNCMV2EQRPCM5DTP66MSJI6JH}

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	2026-05-18T02:14:07.818208Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

09da265744845e2674737fbcc9251e49ce312bf893f1274e54c090f62bcf8b59

Aliases

arxiv: 0904.0501 · arxiv_version: 0904.0501v1 · doi: 10.48550/arxiv.0904.0501 · pith_short_12: BHNCMV2EQRPC · pith_short_16: BHNCMV2EQRPCM5DT · pith_short_8: BHNCMV2E

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/BHNCMV2EQRPCM5DTP66MSJI6JH \
  | 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: 09da265744845e2674737fbcc9251e49ce312bf893f1274e54c090f62bcf8b59

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "abf786bd973cd7ce6360bbaa306ce2dcc11379626fef9aba73c7e8c23be38efd",
    "cross_cats_sorted": [
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math-ph",
    "submitted_at": "2009-04-03T02:19:06Z",
    "title_canon_sha256": "9e19fb5849f1fe91db5a2d146d797e200f62a0f627ad487f1294d3248ca34a4b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0904.0501",
    "kind": "arxiv",
    "version": 1
  }
}