Pith Number

pith:EKA7Y3CU

pith:2006:EKA7Y3CUUJLN7LNPJMNMU2PEID

not attested not anchored not stored refs pending

Fractal dimension of interstellar clouds: opacity and noise effects

Emilio J. Alfaro, Enrique Perez, Nestor Sanchez

arxiv:astro-ph/0610613 v1 · 2006-10-20 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EKA7Y3CUUJLN7LNPJMNMU2PEID}

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	2026-05-18T04:28:57.453477Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2281fc6c54a256dfadaf4b1aca69e440fbc396a7c6c6b5923961485fb0432baa

Aliases

arxiv: astro-ph/0610613 · arxiv_version: astro-ph/0610613v1 · doi: 10.48550/arxiv.astro-ph/0610613 · pith_short_12: EKA7Y3CUUJLN · pith_short_16: EKA7Y3CUUJLN7LNP · pith_short_8: EKA7Y3CU

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/EKA7Y3CUUJLN7LNPJMNMU2PEID \
  | 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: 2281fc6c54a256dfadaf4b1aca69e440fbc396a7c6c6b5923961485fb0432baa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5076ab3a9e2fc8680290226e6e917bba7c297896b55654f2e56031a670975f7d",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2006-10-20T07:32:47Z",
    "title_canon_sha256": "73ea7d4bfb6eb3b337f04c16d0577984cf2c9e12b0d6cc8921701eadcc10f951"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0610613",
    "kind": "arxiv",
    "version": 1
  }
}