Pith Number

pith:UTV3J7HM

pith:2012:UTV3J7HM4G7WLEGWVD6JFX7DDC

not attested not anchored not stored refs pending

The Perverse Study of the Milnor Fiber

David B. Massey

arxiv:1207.6815 v1 · 2012-07-30 · 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{UTV3J7HM4G7WLEGWVD6JFX7DDC}

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	2026-05-18T03:49:48.594810Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a4ebb4fcece1bf6590d6a8fc92dfe3188c1ff8fd6f967ea1b7fdfe0c1178dd7f

Aliases

arxiv: 1207.6815 · arxiv_version: 1207.6815v1 · doi: 10.48550/arxiv.1207.6815 · pith_short_12: UTV3J7HM4G7W · pith_short_16: UTV3J7HM4G7WLEGW · pith_short_8: UTV3J7HM

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/UTV3J7HM4G7WLEGWVD6JFX7DDC \
  | 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: a4ebb4fcece1bf6590d6a8fc92dfe3188c1ff8fd6f967ea1b7fdfe0c1178dd7f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6d42b524cb443b0fcc8bc75f94f17c0cd7f0f6c0811beb581059ae151d9e7a2a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2012-07-30T01:10:49Z",
    "title_canon_sha256": "33ed2911d10274fa5738c21bb0d9252afdb37b48c408f6231b250eb35ff2c259"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1207.6815",
    "kind": "arxiv",
    "version": 1
  }
}