Pith Number

pith:Y2FSAT4Z

pith:2023:Y2FSAT4ZT5XHFMXSRRY3KE264M

not attested not anchored not stored refs pending

Distinguishing the impact and signature of black holes from different origins in early cosmic history

Boyuan Liu, Saiyang Zhang, Volker Bromm

arxiv:2310.01763 v2 · 2023-10-03 · astro-ph.CO · astro-ph.GA · astro-ph.HE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{Y2FSAT4ZT5XHFMXSRRY3KE264M}

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	2026-07-05T08:07:11.327032Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c68b204f999f6e72b2f28c71b5135ee32e03c622cdcb6578fe04921cc24d9191

Aliases

arxiv: 2310.01763 · arxiv_version: 2310.01763v2 · doi: 10.48550/arxiv.2310.01763 · pith_short_12: Y2FSAT4ZT5XH · pith_short_16: Y2FSAT4ZT5XHFMXS · pith_short_8: Y2FSAT4Z

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/Y2FSAT4ZT5XHFMXSRRY3KE264M \
  | 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: c68b204f999f6e72b2f28c71b5135ee32e03c622cdcb6578fe04921cc24d9191

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a505100076f8d4b79bd63ead4431a4af96b156185285d9670086e91704a41d35",
    "cross_cats_sorted": [
      "astro-ph.GA",
      "astro-ph.HE"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2023-10-03T03:07:35Z",
    "title_canon_sha256": "3a4953ccae2f235948cc9ae44a394d42cbaacd2ddf5300fb6f9c8f269580a726"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2310.01763",
    "kind": "arxiv",
    "version": 2
  }
}