Pith Number

pith:DH5HZ35K

pith:2011:DH5HZ35KCIPVB5JLZVDSZDH52S

not attested not anchored not stored refs pending

21-cm cosmology

Abraham Loeb (CfA), Imperial), Jonathan R. Pritchard (CfA

arxiv:1109.6012 v2 · 2011-09-27 · 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{DH5HZ35KCIPVB5JLZVDSZDH52S}

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

11 papers in Pith

Cosmological searches for the neutrino mass scale and mass ordering

Imprints of energy injection by compact dark stars in the 21-cm signal

Mitigating gain calibration errors from EoR observations with SKA1-Low AA*

STARFIRE-2: Can we detect the global redshifted 21-cm signal from the cosmic dawn in Earth orbit?

Testing ER = EPR with Hydrogen

Receipt and verification

First computed	2026-05-18T02:00:22.493489Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

19fa7cefaa121f50f52bcd472c8cfdd49b83e204f4a32fd5bdb0c5d7ff3dad26

Aliases

arxiv: 1109.6012 · arxiv_version: 1109.6012v2 · doi: 10.48550/arxiv.1109.6012 · pith_short_12: DH5HZ35KCIPV · pith_short_16: DH5HZ35KCIPVB5JL · pith_short_8: DH5HZ35K

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/DH5HZ35KCIPVB5JLZVDSZDH52S \
  | 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: 19fa7cefaa121f50f52bcd472c8cfdd49b83e204f4a32fd5bdb0c5d7ff3dad26

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "af379eada188c79191c88aabd56d22487d11c3d39d9b5ce50146d9310edf9c95",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-09-27T20:00:03Z",
    "title_canon_sha256": "d762c360320148b385b1255630d3f5b70b5ca8e67945932bb17d4e453756bf8a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1109.6012",
    "kind": "arxiv",
    "version": 2
  }
}