Pith Number

pith:H7P6JG4Q

pith:2013:H7P6JG4QD5W7ZQGFVHNPN52HEG

not attested not anchored not stored refs pending

Explicit resolution of three dimensional terminal singularities

Jungkai Alfred Chen

arxiv:1310.6445 v1 · 2013-10-24 · 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{H7P6JG4QD5W7ZQGFVHNPN52HEG}

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	2026-05-18T03:09:10.157188Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3fdfe49b901f6dfcc0c5a9daf6f74721ad953b2f15eca8f4a0e098e9b1d115fd

Aliases

arxiv: 1310.6445 · arxiv_version: 1310.6445v1 · doi: 10.48550/arxiv.1310.6445 · pith_short_12: H7P6JG4QD5W7 · pith_short_16: H7P6JG4QD5W7ZQGF · pith_short_8: H7P6JG4Q

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/H7P6JG4QD5W7ZQGFVHNPN52HEG \
  | 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: 3fdfe49b901f6dfcc0c5a9daf6f74721ad953b2f15eca8f4a0e098e9b1d115fd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "271c5d38397736a55373efb8bd951f74dac171873afaaf5b2f068ac81e8ee928",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2013-10-24T00:46:55Z",
    "title_canon_sha256": "5e27d90dd3cee5b83e15d06e120e21d1b604e7a95f4149fd5be5f0edbb071dfa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1310.6445",
    "kind": "arxiv",
    "version": 1
  }
}