Pith Number

pith:HMTV6HIG

pith:2013:HMTV6HIGITHZQJSLMCTGYIJB3E

not attested not anchored not stored refs pending

Using conditional entropy to identify periodicity

Andrew J. Drake, Ashish A Mahabal, Ciro Donalek, Matthew J. Graham, S. G. Djorgovski

arxiv:1306.6664 v2 · 2013-06-27 · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HMTV6HIGITHZQJSLMCTGYIJB3E}

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.

Cited by

1 paper in Pith

VarWISE: Infrared Variability via NEOWISE Single Exposure Photometry

Receipt and verification

First computed	2026-05-18T01:49:06.822258Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3b275f1d0644cf98264b60a66c2121d91aa6c0c5bc51bdadcb39fa1074b60540

Aliases

arxiv: 1306.6664 · arxiv_version: 1306.6664v2 · doi: 10.48550/arxiv.1306.6664 · pith_short_12: HMTV6HIGITHZ · pith_short_16: HMTV6HIGITHZQJSL · pith_short_8: HMTV6HIG

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/HMTV6HIGITHZQJSLMCTGYIJB3E \
  | 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: 3b275f1d0644cf98264b60a66c2121d91aa6c0c5bc51bdadcb39fa1074b60540

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9c3428538d3d26995c8c564d607b4c7adf128c56e06af351507434f86c846a3a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2013-06-27T21:28:40Z",
    "title_canon_sha256": "7106a754abeb118db03d5684c1fd450c5782fb4dd4cd5c794a0423c003979427"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1306.6664",
    "kind": "arxiv",
    "version": 2
  }
}