Pith Number

pith:F3MURJYV

pith:2012:F3MURJYV7GZ5ENZVZBB5OYTT2U

not attested not anchored not stored refs pending

The 21-cm signature of the first stars during the Lyman-Werner feedback era

Anastasia Fialkov, Christopher M. Hirata, Dmitriy Tseliakhovich, Eli Visbal, Rennan Barkana

arxiv:1212.0513 v1 · 2012-12-03 · 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{F3MURJYV7GZ5ENZVZBB5OYTT2U}

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	2026-05-18T03:22:17.220223Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2ed948a715f9b3d23735c843d76273d518b1934cd7784a9932b115846ec8c5ab

Aliases

arxiv: 1212.0513 · arxiv_version: 1212.0513v1 · doi: 10.48550/arxiv.1212.0513 · pith_short_12: F3MURJYV7GZ5 · pith_short_16: F3MURJYV7GZ5ENZV · pith_short_8: F3MURJYV

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/F3MURJYV7GZ5ENZVZBB5OYTT2U \
  | 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: 2ed948a715f9b3d23735c843d76273d518b1934cd7784a9932b115846ec8c5ab

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5ab79444c2b99a63179ed332c8af34059c2c10cab9b6d90d41a66900262bff2b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-12-03T20:08:45Z",
    "title_canon_sha256": "af6a63d63d853dc90c6009cddf6b45de1c113a6909f7a2366fc079fe62b3a489"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1212.0513",
    "kind": "arxiv",
    "version": 1
  }
}