Pith Number

pith:FLZ6J4AA

pith:2019:FLZ6J4AAQMCBCQAWD7UFNXREXF

not attested not anchored not stored refs pending

The erratic dynamical life of black hole seeds in high-redshift galaxies

Hugo Pfister, Marta Volonteri, Massimo Dotti, Monica Colpi, Yohan Dubois

arxiv:1902.01297 v2 · 2019-02-04 · 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{FLZ6J4AAQMCBCQAWD7UFNXREXF}

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	2026-05-17T23:45:14.897857Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2af3e4f00083041140161fe856de24b97d99eb102d82b86050c0995ce34f4120

Aliases

arxiv: 1902.01297 · arxiv_version: 1902.01297v2 · doi: 10.48550/arxiv.1902.01297 · pith_short_12: FLZ6J4AAQMCB · pith_short_16: FLZ6J4AAQMCBCQAW · pith_short_8: FLZ6J4AA

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/FLZ6J4AAQMCBCQAWD7UFNXREXF \
  | 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: 2af3e4f00083041140161fe856de24b97d99eb102d82b86050c0995ce34f4120

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9bca7f6607184b8e7d19de2fc92931a5d5f56220c4e0ed0a20cf7997af62faa7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2019-02-04T16:43:36Z",
    "title_canon_sha256": "a382e4a6f8e1a2fc6339d5baf678dc983c61173fb45b7d4d4ad9359de22f89e4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.01297",
    "kind": "arxiv",
    "version": 2
  }
}