Pith Number

pith:CPMSCNQL

pith:2019:CPMSCNQLYLD5JVPWK5JFQA4LBB

not attested not anchored not stored refs pending

The trigonal construction in the ramified case

Angela Ortega, Herbert Lange

arxiv:1902.00251 v1 · 2019-02-01 · 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{CPMSCNQLYLD5JVPWK5JFQA4LBB}

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	2026-05-17T23:54:57.928135Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

13d921360bc2c7d4d5f6575258038b087da823a8e7827e3c7b99e76405ad0c33

Aliases

arxiv: 1902.00251 · arxiv_version: 1902.00251v1 · doi: 10.48550/arxiv.1902.00251 · pith_short_12: CPMSCNQLYLD5 · pith_short_16: CPMSCNQLYLD5JVPW · pith_short_8: CPMSCNQL

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/CPMSCNQLYLD5JVPWK5JFQA4LBB \
  | 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: 13d921360bc2c7d4d5f6575258038b087da823a8e7827e3c7b99e76405ad0c33

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "70cf4589e3c77cccf7c321ea4d3cf7a979a81dfa39fff29f462bd2653bbb7b74",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2019-02-01T09:48:46Z",
    "title_canon_sha256": "3efa5dc1f286b566ddcfd524935e2087e9b03fe8559880f48d3325a4a33d4fd7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.00251",
    "kind": "arxiv",
    "version": 1
  }
}