Pith Number

pith:45UOH2YD

pith:2013:45UOH2YDDM3RRT2MURESFFJFVM

not attested not anchored not stored refs pending

The connected components of the space of Alexandrov surfaces

Costin V\^ilcu, Jo\"el Rouyer

arxiv:1310.8491 v1 · 2013-10-31 · math.MG · math.DG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{45UOH2YDDM3RRT2MURESFFJFVM}

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	2026-05-18T03:08:16.868739Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e768e3eb031b3718cf4ca449229525ab264f8ad487470f74737918f179971d18

Aliases

arxiv: 1310.8491 · arxiv_version: 1310.8491v1 · doi: 10.48550/arxiv.1310.8491 · pith_short_12: 45UOH2YDDM3R · pith_short_16: 45UOH2YDDM3RRT2M · pith_short_8: 45UOH2YD

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/45UOH2YDDM3RRT2MURESFFJFVM \
  | 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: e768e3eb031b3718cf4ca449229525ab264f8ad487470f74737918f179971d18

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d93640f181f14b9cc7a45145c90cf6a44fb194038cdf19bcf2e770d8d8adeed4",
    "cross_cats_sorted": [
      "math.DG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.MG",
    "submitted_at": "2013-10-31T13:24:01Z",
    "title_canon_sha256": "b4868d26b1dc2c482762bfb990a228a3333e6b3735964f24452e872a78074945"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1310.8491",
    "kind": "arxiv",
    "version": 1
  }
}