Pith Number

pith:XTDVZX7N

pith:2013:XTDVZX7NR7ABY5AWESWNDM5QAM

not attested not anchored not stored refs pending

A Variational Principle for Improving 2D Triangle Meshes based on Hyperbolic Volume

Feng Luo, Jian Sun, Jie Gao, Junhui Deng, Wei Chen, Xianfeng Gu

arxiv:1308.3872 v1 · 2013-08-18 · cs.CG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XTDVZX7NR7ABY5AWESWNDM5QAM}

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	2026-05-18T03:15:42.296469Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bcc75cdfed8fc01c741624acd1b3b00304bee4ff3ad796b24f1dfbc9523818f2

Aliases

arxiv: 1308.3872 · arxiv_version: 1308.3872v1 · doi: 10.48550/arxiv.1308.3872 · pith_short_12: XTDVZX7NR7AB · pith_short_16: XTDVZX7NR7ABY5AW · pith_short_8: XTDVZX7N

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/XTDVZX7NR7ABY5AWESWNDM5QAM \
  | 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: bcc75cdfed8fc01c741624acd1b3b00304bee4ff3ad796b24f1dfbc9523818f2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7e44c237e8c81652ad41f45b43fdabe876862c29190d4d6db12d38b3727dbc1d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CG",
    "submitted_at": "2013-08-18T16:40:31Z",
    "title_canon_sha256": "cf61c4df0d5ab874ef8bbdc0b2696f847bb7fe8e2da4bf749a55956e9da5af2a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1308.3872",
    "kind": "arxiv",
    "version": 1
  }
}