Pith Number

pith:SAC3ZEWD

pith:2009:SAC3ZEWDWB6XMNKLIPXH36QECS

not attested not anchored not stored refs pending

Exploring Dark Matter with Milky Way substructure

J. Silk (U. of Oxford), M. Kuhlen (IAS, P. Madau (UC Santa Cruz), Princeton)

arxiv:0907.0005 v2 · 2009-06-30 · astro-ph.GA · astro-ph.CO · astro-ph.HE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SAC3ZEWDWB6XMNKLIPXH36QECS}

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	2026-07-04T17:20:19.243365Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9005bc92c3b07d76354b43ee7dfa04148d2075428048ffce9cac9beff93eb22d

Aliases

arxiv: 0907.0005 · arxiv_version: 0907.0005v2 · doi: 10.48550/arxiv.0907.0005 · pith_short_12: SAC3ZEWDWB6X · pith_short_16: SAC3ZEWDWB6XMNKL · pith_short_8: SAC3ZEWD

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/SAC3ZEWDWB6XMNKLIPXH36QECS \
  | 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: 9005bc92c3b07d76354b43ee7dfa04148d2075428048ffce9cac9beff93eb22d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1300dc804b4cc49e0a90ca197cf9ce741c50e03f19e953cfc8e336a230805b7e",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "astro-ph.HE"
    ],
    "license": "http://creativecommons.org/licenses/by/3.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2009-06-30T20:00:07Z",
    "title_canon_sha256": "7f5fdd3a9d577f6d1d60eea5373af710b865b5ef663e4e89897af9519a1b8766"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0907.0005",
    "kind": "arxiv",
    "version": 2
  }
}