Pith Number

pith:62QFG6GA

pith:2017:62QFG6GA5GO3M57QRO4OABCEOC

not attested not anchored not stored refs pending

A vanishing associated with irregular MSP fields

Huai-Liang Chang, Jun Li

arxiv:1708.02902 v1 · 2017-08-09 · 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{62QFG6GA5GO3M57QRO4OABCEOC}

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	2026-05-18T00:38:19.162377Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f6a05378c0e99db677f08bb8e00444709a0563da5e8ee6006a6b25f6e7130588

Aliases

arxiv: 1708.02902 · arxiv_version: 1708.02902v1 · doi: 10.48550/arxiv.1708.02902 · pith_short_12: 62QFG6GA5GO3 · pith_short_16: 62QFG6GA5GO3M57Q · pith_short_8: 62QFG6GA

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/62QFG6GA5GO3M57QRO4OABCEOC \
  | 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: f6a05378c0e99db677f08bb8e00444709a0563da5e8ee6006a6b25f6e7130588

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c079de9691354a27b458839d7d35cb3716499220e97dc2240c2a101c79441ed2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2017-08-09T16:36:36Z",
    "title_canon_sha256": "086f3e1288edc5f4ded0f9d15bb16c399fef7907d341b82a949d64502485a56c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1708.02902",
    "kind": "arxiv",
    "version": 1
  }
}