Pith Number

pith:YUSO6BGS

pith:2012:YUSO6BGSGRMUAE4CZQ5R2VAWDY

not attested not anchored not stored refs pending

Open book decompositions of links of quotient surface singularities and support genus problem

Elif Dalyan

arxiv:1204.3576 v1 · 2012-04-16 · 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{YUSO6BGSGRMUAE4CZQ5R2VAWDY}

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	2026-05-18T03:57:51.168236Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c524ef04d23459401382cc3b1d54161e17b945a916feecff38276fe3b0266db6

Aliases

arxiv: 1204.3576 · arxiv_version: 1204.3576v1 · doi: 10.48550/arxiv.1204.3576 · pith_short_12: YUSO6BGSGRMU · pith_short_16: YUSO6BGSGRMUAE4C · pith_short_8: YUSO6BGS

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/YUSO6BGSGRMUAE4CZQ5R2VAWDY \
  | 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: c524ef04d23459401382cc3b1d54161e17b945a916feecff38276fe3b0266db6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c4eb16c148a2b01a18f6306a3a5c1c237bd3916e7547a794768c8891b738cfef",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GT",
    "submitted_at": "2012-04-16T17:20:36Z",
    "title_canon_sha256": "4b04e5728c95334123591f5ace76591ec950321ff68a2f1cf9486df84001cacb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1204.3576",
    "kind": "arxiv",
    "version": 1
  }
}