Pith Number

pith:L6DRJZ7B

pith:2012:L6DRJZ7B6IJW3ICE3V2735NQ3I

not attested not anchored not stored refs pending

Four Fundamental Foreground Power Spectrum Shapes for 21 cm Cosmology Observations

Adam Beardsley, Bryna Hazelton, Ian Sullivan, Miguel F. Morales

arxiv:1202.3830 v2 · 2012-02-17 · astro-ph.IM · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{L6DRJZ7B6IJW3ICE3V2735NQ3I}

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	2026-05-18T01:58:24.244918Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5f8714e7e1f2136da044dd75fdf5b0da33297028a630711a6e90abfd88e63127

Aliases

arxiv: 1202.3830 · arxiv_version: 1202.3830v2 · doi: 10.48550/arxiv.1202.3830 · pith_short_12: L6DRJZ7B6IJW · pith_short_16: L6DRJZ7B6IJW3ICE · pith_short_8: L6DRJZ7B

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/L6DRJZ7B6IJW3ICE3V2735NQ3I \
  | 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: 5f8714e7e1f2136da044dd75fdf5b0da33297028a630711a6e90abfd88e63127

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f53c00cd81ac380ce7824e2a7b1c3a7a8607fcaac1a1270fe0f1135c289d0a1e",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2012-02-17T02:33:19Z",
    "title_canon_sha256": "2aad1ff84df031f8c9d8dd534402ec3aa45d8c50c48ece6ff62e1dee91c365d2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1202.3830",
    "kind": "arxiv",
    "version": 2
  }
}