Pith Number

pith:PVHSURMH

pith:2009:PVHSURMHGWJBORIAJMXCHZ4AYV

not attested not anchored not stored refs pending

Solution of the generalized periodic discrete Toda equation II; Theta function solution

Shinsuke Iwao

arxiv:0912.2213 v1 · 2009-12-11 · math.AG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PVHSURMHGWJBORIAJMXCHZ4AYV}

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	2026-05-18T02:10:24.514093Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7d4f2a458735921745004b2e23e780c56f131667dfa597986a003b3573452beb

Aliases

arxiv: 0912.2213 · arxiv_version: 0912.2213v1 · doi: 10.48550/arxiv.0912.2213 · pith_short_12: PVHSURMHGWJB · pith_short_16: PVHSURMHGWJBORIA · pith_short_8: PVHSURMH

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/PVHSURMHGWJBORIAJMXCHZ4AYV \
  | 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: 7d4f2a458735921745004b2e23e780c56f131667dfa597986a003b3573452beb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "771621be1d488a34aa54fa8268c1b3b1f76c01c17e34acfe080af398fdabe572",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2009-12-11T12:23:04Z",
    "title_canon_sha256": "a80d6f027c47c9dc1086363860bb42e353f5bfffbc9efb2ab03ea1379b0ede74"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0912.2213",
    "kind": "arxiv",
    "version": 1
  }
}