Pith Number

pith:B5SZIRG5

pith:2017:B5SZIRG5RLMSC7KQ6KKFMCXY3B

not attested not anchored not stored refs pending

Entropy of real rational surface automorphisms

Jeffrey Diller, Kyounghee Kim

arxiv:1710.07665 v2 · 2017-10-20 · math.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{B5SZIRG5RLMSC7KQ6KKFMCXY3B}

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	2026-05-18T00:07:21.935508Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0f659444dd8ad9217d50f294560af8d84faaaf0e9d0f365074becbf1057565fd

Aliases

arxiv: 1710.07665 · arxiv_version: 1710.07665v2 · doi: 10.48550/arxiv.1710.07665 · pith_short_12: B5SZIRG5RLMS · pith_short_16: B5SZIRG5RLMSC7KQ · pith_short_8: B5SZIRG5

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/B5SZIRG5RLMSC7KQ6KKFMCXY3B \
  | 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: 0f659444dd8ad9217d50f294560af8d84faaaf0e9d0f365074becbf1057565fd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3b48ebc47437ed4f9e5adb8035d187de1d4d35f62b7bbcee43d667fc33e24c6e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DS",
    "submitted_at": "2017-10-20T18:48:09Z",
    "title_canon_sha256": "0dd1e8c4fb14ba140388947993efac1b0cc7dced055b36932dae8daa6efeba95"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1710.07665",
    "kind": "arxiv",
    "version": 2
  }
}