Pith Number

pith:AUBQIMZ4

pith:2012:AUBQIMZ445A3JLDGWE2V4MMD6R

not attested not anchored not stored refs pending

Testing General Relativity with 21 cm intensity mapping

Alex Hall, Anthony Challinor, Camille Bonvin

arxiv:1212.0728 v2 · 2012-12-04 · 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{AUBQIMZ445A3JLDGWE2V4MMD6R}

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	2026-05-18T03:27:11.302105Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

050304333ce741b4ac66b1355e3183f448ca687e9f480296397fdfc4a57d90b5

Aliases

arxiv: 1212.0728 · arxiv_version: 1212.0728v2 · doi: 10.48550/arxiv.1212.0728 · pith_short_12: AUBQIMZ445A3 · pith_short_16: AUBQIMZ445A3JLDG · pith_short_8: AUBQIMZ4

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/AUBQIMZ445A3JLDGWE2V4MMD6R \
  | 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: 050304333ce741b4ac66b1355e3183f448ca687e9f480296397fdfc4a57d90b5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "00e461c988cc9a91281affca4d4a00d5a5c47ea0c14bf59744e805ad146ce17e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-12-04T14:10:48Z",
    "title_canon_sha256": "10c1887731f3bc27ea4fcdd9d8b175725d7f4aba74193f5b5e324146ffdef9e6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1212.0728",
    "kind": "arxiv",
    "version": 2
  }
}