Pith Number

pith:NT2PH7HC

pith:2014:NT2PH7HCTZREPQ747YELALGZHU

not attested not anchored not stored refs pending

Dehn surgery and Seifert surface system

Koya Shimokawa, Makoto Ozawa

arxiv:1406.6264 v1 · 2014-06-24 · 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{NT2PH7HCTZREPQ747YELALGZHU}

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	2026-05-18T02:49:03.779777Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6cf4f3fce29e6247c3fcfe08b02cd93d3e6b7d6a52cd7208ad51a6c9bb5e1b80

Aliases

arxiv: 1406.6264 · arxiv_version: 1406.6264v1 · doi: 10.48550/arxiv.1406.6264 · pith_short_12: NT2PH7HCTZRE · pith_short_16: NT2PH7HCTZREPQ74 · pith_short_8: NT2PH7HC

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/NT2PH7HCTZREPQ747YELALGZHU \
  | 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: 6cf4f3fce29e6247c3fcfe08b02cd93d3e6b7d6a52cd7208ad51a6c9bb5e1b80

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1b9d2b70e37457372a9f7ae21455ba4d1bc3640c4054f7b2dc9c1948d09d03a7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GT",
    "submitted_at": "2014-06-24T14:50:21Z",
    "title_canon_sha256": "0d963bfbcb562f81011e2725d9675821afc911e9878b36ec6f8040d67142b08f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1406.6264",
    "kind": "arxiv",
    "version": 1
  }
}