Pith Number

pith:U56SOAXC

pith:2006:U56SOAXCIKBTLLGKMXBC5EYDHO

not attested not anchored not stored refs pending

A Cold Nearby Cloud Inside the Local Bubble

Carl Heiles, David M. Meyer, J.E.G. Peek, J.T. Lauroesch, Kyle Engelhorn

arxiv:astro-ph/0609611 v1 · 2006-09-21 · 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{U56SOAXCIKBTLLGKMXBC5EYDHO}

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	2026-07-04T16:59:26.561449Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a77d2702e2428335acca65c22e93033b887245d4aa63bf77a26c8dc4686f76bc

Aliases

arxiv: astro-ph/0609611 · arxiv_version: astro-ph/0609611v1 · doi: 10.48550/arxiv.astro-ph/0609611 · pith_short_12: U56SOAXCIKBT · pith_short_16: U56SOAXCIKBTLLGK · pith_short_8: U56SOAXC

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/U56SOAXCIKBTLLGKMXBC5EYDHO \
  | 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: a77d2702e2428335acca65c22e93033b887245d4aa63bf77a26c8dc4686f76bc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f4a8e76d55be21cdbeefea9f04d0eedff594f7b2fb3e1775682bb33d7edff7bd",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2006-09-21T17:06:57Z",
    "title_canon_sha256": "f12bc817023b75ad3f38fd72dc565d65c25078faf07736584c26adf82204d712"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0609611",
    "kind": "arxiv",
    "version": 1
  }
}