Pith Number

pith:NNTAH6JZ

pith:2012:NNTAH6JZTOU45HDXAXHSYXSTP2

not attested not anchored not stored refs pending

The impact of the supersonic baryon-dark matter velocity difference on the z~20 21cm background

Matthew McQuinn, Ryan M. O'Leary

arxiv:1204.1345 v3 · 2012-04-05 · 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{NNTAH6JZTOU45HDXAXHSYXSTP2}

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.

Cited by

1 paper in Pith

Primordial black holes and the velocity acoustic oscillations features in 21 cm signals from the cosmic Dark Ages

Receipt and verification

First computed	2026-05-18T01:57:56.452214Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6b6603f9399ba9ce9c7705cf2c5e537eaf194aa94d4a03a14abf83b4b42298e2

Aliases

arxiv: 1204.1345 · arxiv_version: 1204.1345v3 · doi: 10.48550/arxiv.1204.1345 · pith_short_12: NNTAH6JZTOU4 · pith_short_16: NNTAH6JZTOU45HDX · pith_short_8: NNTAH6JZ

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/NNTAH6JZTOU45HDXAXHSYXSTP2 \
  | 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: 6b6603f9399ba9ce9c7705cf2c5e537eaf194aa94d4a03a14abf83b4b42298e2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6efd9cbeae9bb11bbbd44a5904e2b18c6da5b6c5026c00a05e1477aee54b048c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-04-05T20:00:06Z",
    "title_canon_sha256": "57abcf0e28c6c57a17144af9d8aa120d8278df9e1fb552ea596ed9da60a04aa7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1204.1345",
    "kind": "arxiv",
    "version": 3
  }
}