Pith Number

pith:GU7UWMRG

pith:2016:GU7UWMRGV6QZPIOQLWKGQ5R63K

not attested not anchored not stored refs pending

Area-preserving diffeomorphism of the hyperbolic plane and K-surfaces in Anti-de Sitter space

Andrea Seppi, Francesco Bonsante

arxiv:1610.05701 v2 · 2016-10-18 · math.DG · math.CV · math.GN

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{GU7UWMRGV6QZPIOQLWKGQ5R63K}

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	2026-05-17T23:48:02.482488Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

353f4b3226afa197a1d05d9468763edaaa7eab3458474c4fad57eb949796dea9

Aliases

arxiv: 1610.05701 · arxiv_version: 1610.05701v2 · doi: 10.48550/arxiv.1610.05701 · pith_short_12: GU7UWMRGV6QZ · pith_short_16: GU7UWMRGV6QZPIOQ · pith_short_8: GU7UWMRG

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/GU7UWMRGV6QZPIOQLWKGQ5R63K \
  | 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: 353f4b3226afa197a1d05d9468763edaaa7eab3458474c4fad57eb949796dea9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7d7513e7b36e97be58c5068c228293951ca743171392205df31069a74cce22ed",
    "cross_cats_sorted": [
      "math.CV",
      "math.GN"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2016-10-18T16:35:46Z",
    "title_canon_sha256": "caf227ab2ace584ecfdb2e0c8f42e36f6b3cb8f721a93917576c96ab6632ccf2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1610.05701",
    "kind": "arxiv",
    "version": 2
  }
}