Pith Number

pith:BTZMVVWM

pith:2018:BTZMVVWMG7CHDL67YV2UVB2F4U

not attested not anchored not stored refs pending

Systematic Serendipity: A Test of Unsupervised Machine Learning as a Method for Anomaly Detection

Daniel Giles, Lucianne Walkowicz

arxiv:1812.07156 v1 · 2018-12-18 · astro-ph.IM · astro-ph.SR

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BTZMVVWMG7CHDL67YV2UVB2F4U}

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	2026-05-17T23:56:44.515608Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0cf2cad6cc37c471afdfc5754a8745e50fe5c8025c40b5a1e8930d9c6a1037c4

Aliases

arxiv: 1812.07156 · arxiv_version: 1812.07156v1 · doi: 10.48550/arxiv.1812.07156 · pith_short_12: BTZMVVWMG7CH · pith_short_16: BTZMVVWMG7CHDL67 · pith_short_8: BTZMVVWM

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/BTZMVVWMG7CHDL67YV2UVB2F4U \
  | 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: 0cf2cad6cc37c471afdfc5754a8745e50fe5c8025c40b5a1e8930d9c6a1037c4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a77cafb023a8b24273638aabdae99bd4f5e3047f179f4c47d5d65e9e3cb4e726",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2018-12-18T03:49:15Z",
    "title_canon_sha256": "a8b65ba6ba7af158760918790b523c7f92b24897e5887adaa81087341346ce08"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1812.07156",
    "kind": "arxiv",
    "version": 1
  }
}