Pith Number

pith:QRG5RZZX

pith:2015:QRG5RZZXYJBFAILODNCQWK6VPJ

not attested not anchored not stored refs pending

How the first stars shaped the faintest gas-dominated dwarf galaxies

Bert Vandenbroucke, Robbert Verbeke, Sven De Rijcke

arxiv:1511.01484 v1 · 2015-11-04 · astro-ph.GA

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QRG5RZZXYJBFAILODNCQWK6VPJ}

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	2026-05-18T01:24:17.728749Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

844dd8e737c24250216e1b450b2bd57a70fb065f2df99c70074d918f59f4d230

Aliases

arxiv: 1511.01484 · arxiv_version: 1511.01484v1 · doi: 10.48550/arxiv.1511.01484 · pith_short_12: QRG5RZZXYJBF · pith_short_16: QRG5RZZXYJBFAILO · pith_short_8: QRG5RZZX

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/QRG5RZZXYJBFAILODNCQWK6VPJ \
  | 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: 844dd8e737c24250216e1b450b2bd57a70fb065f2df99c70074d918f59f4d230

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cfae2113e5898d2fbbd22052fc983f6225fa94e7fa2e1696899f6a0798ae779f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2015-11-04T21:00:00Z",
    "title_canon_sha256": "bea1fc7c8453b9f4a8f109d2ba56f204f05db944b83356fcbd577b4daab101d5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1511.01484",
    "kind": "arxiv",
    "version": 1
  }
}