Pith Number

pith:GVJZPIVW

pith:2012:GVJZPIVWHZB25UQIK7FO3OZDBI

not attested not anchored not stored refs pending

The First Billion Years project - IV: Proto-galaxies reionising the Universe

Claudio Dalla Vecchia, Jan-Pieter Paardekooper, Sadegh Khochfar

arxiv:1211.1670 v1 · 2012-11-07 · 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{GVJZPIVWHZB25UQIK7FO3OZDBI}

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	2026-05-18T01:53:18.328011Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

355397a2b63e43aed20857caedbb230a39fe909440061e58c4b7fb3ac9986a8d

Aliases

arxiv: 1211.1670 · arxiv_version: 1211.1670v1 · doi: 10.48550/arxiv.1211.1670 · pith_short_12: GVJZPIVWHZB2 · pith_short_16: GVJZPIVWHZB25UQI · pith_short_8: GVJZPIVW

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/GVJZPIVWHZB25UQIK7FO3OZDBI \
  | 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: 355397a2b63e43aed20857caedbb230a39fe909440061e58c4b7fb3ac9986a8d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f46c591529fb1d790e11705c48cb78b4db3eadff30db7318e18d3c015fd024b5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-11-07T21:00:01Z",
    "title_canon_sha256": "62d018b1bd584cd6a64ba71c44686aeee79db73f1de25b0132418c82e7c5e17e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1211.1670",
    "kind": "arxiv",
    "version": 1
  }
}