Pith Number

pith:PLB2DVEA

pith:2014:PLB2DVEACRUGDYPHD3BBSBXRIW

not attested not anchored not stored refs pending

Farthest points on most Alexandrov surfaces

Costin V\^ilcu, Jo\"el Rouyer

arxiv:1412.1465 v2 · 2014-12-03 · math.MG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PLB2DVEACRUGDYPHD3BBSBXRIW}

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	2026-05-18T00:32:15.483077Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7ac3a1d480146861e1e71ec21906f145ae6986594e1cbb3a0f7c60e9a7f48749

Aliases

arxiv: 1412.1465 · arxiv_version: 1412.1465v2 · doi: 10.48550/arxiv.1412.1465 · pith_short_12: PLB2DVEACRUG · pith_short_16: PLB2DVEACRUGDYPH · pith_short_8: PLB2DVEA

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/PLB2DVEACRUGDYPHD3BBSBXRIW \
  | 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: 7ac3a1d480146861e1e71ec21906f145ae6986594e1cbb3a0f7c60e9a7f48749

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "813541da8c63ae3cb862610e0e96ce90548d1204ed6819573b7b714589baa0f7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.MG",
    "submitted_at": "2014-12-03T20:47:21Z",
    "title_canon_sha256": "2a5a730f7a2461efefccc528ca8b11bffbe336ee809cc6d9d0b10255791d5534"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1412.1465",
    "kind": "arxiv",
    "version": 2
  }
}