Pith Number

pith:QVZTWCM2

pith:2017:QVZTWCM2Z3Y4YEKTYOUVVIO2IT

not attested not anchored not stored refs pending

Galaxies into the Dark Ages

A. Ferrara (Scuola Normale Superiore, C.L. Carilli, E.J. Murphy (NRAO), P. Dayal (Kavli IPMU, Pisa), Tokyo)

arxiv:1709.02001 v1 · 2017-09-06 · 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{QVZTWCM2Z3Y4YEKTYOUVVIO2IT}

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	2026-05-18T00:32:39.049453Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

85733b099acef1cc1153c3a95aa1da44f6d3e98359276b6d47bdbf0f4f039ff2

Aliases

arxiv: 1709.02001 · arxiv_version: 1709.02001v1 · doi: 10.48550/arxiv.1709.02001 · pith_short_12: QVZTWCM2Z3Y4 · pith_short_16: QVZTWCM2Z3Y4YEKT · pith_short_8: QVZTWCM2

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/QVZTWCM2Z3Y4YEKTYOUVVIO2IT \
  | 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: 85733b099acef1cc1153c3a95aa1da44f6d3e98359276b6d47bdbf0f4f039ff2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "01846889f303a32bff85d5a6f1e84aa577b31c8fe6b50b5ac7a684665009b9aa",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2017-09-06T20:59:32Z",
    "title_canon_sha256": "41ba859c15d617aebcdf9c5f3882c03f6f6574bbedd192bf9b5bac08d4874a40"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1709.02001",
    "kind": "arxiv",
    "version": 1
  }
}