Pith Number

pith:LPSCIGBE

pith:2009:LPSCIGBECB5OPJM22FOKZN7ASA

not attested not anchored not stored refs pending

On non-QRT Mappings of the Plane

N. Joshi, P. Kassotakis

arxiv:0906.2815 v1 · 2009-06-15 · 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{LPSCIGBECB5OPJM22FOKZN7ASA}

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	2026-05-18T02:13:19.859963Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5be4241824107ae7a59ad15cacb7e09019b5b7a71cfe36bb4eff69b450224bcd

Aliases

arxiv: 0906.2815 · arxiv_version: 0906.2815v1 · doi: 10.48550/arxiv.0906.2815 · pith_short_12: LPSCIGBECB5O · pith_short_16: LPSCIGBECB5OPJM2 · pith_short_8: LPSCIGBE

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/LPSCIGBECB5OPJM22FOKZN7ASA \
  | 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: 5be4241824107ae7a59ad15cacb7e09019b5b7a71cfe36bb4eff69b450224bcd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6faf70ca19bb72de7ccc97a60fe723f4cac52c849aec81eb705f189fdf30ad5b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "nlin.SI",
    "submitted_at": "2009-06-15T22:21:12Z",
    "title_canon_sha256": "a45a447002e2ba375c654be8c74033d4075be1a94ffbb8e888a971f73ce4813c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0906.2815",
    "kind": "arxiv",
    "version": 1
  }
}