Pith Number

pith:CSVSUHUC

pith:2018:CSVSUHUC22HC4HYFMVYNMVVTUG

not attested not anchored not stored refs pending

Degeneration of strictly convex real projective structures on surface

Inkang Kim

arxiv:1811.11841 v2 · 2018-11-28 · math.GT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CSVSUHUC22HC4HYFMVYNMVVTUG}

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	2026-05-17T23:58:30.108536Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

14ab2a1e82d68e2e1f056570d656b3a1bc66171ab01616176048b390dea4221d

Aliases

arxiv: 1811.11841 · arxiv_version: 1811.11841v2 · doi: 10.48550/arxiv.1811.11841 · pith_short_12: CSVSUHUC22HC · pith_short_16: CSVSUHUC22HC4HYF · pith_short_8: CSVSUHUC

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/CSVSUHUC22HC4HYFMVYNMVVTUG \
  | 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: 14ab2a1e82d68e2e1f056570d656b3a1bc66171ab01616176048b390dea4221d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "07c43ce9f1d6c3017197c12bf38eca5ed9171fd5178c628898f8abcd8cc9e1dd",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GT",
    "submitted_at": "2018-11-28T21:21:50Z",
    "title_canon_sha256": "98d75bdb35f7ad90e368b5a2c3c02ef265f6f6decd456750b3144d6d14c4e16b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1811.11841",
    "kind": "arxiv",
    "version": 2
  }
}