Pith Number

pith:QFUPTAPA

pith:2006:QFUPTAPAWQYQZG6R5JSTB4HY6E

not attested not anchored not stored refs pending

The MORGANA model for the rise of galaxies and active nuclei

2), 3), Fabio Fontanot (1, Giuliano Taffoni (2) ((1) DAUT, Heidelberg - Germany), Pierluigi Monaco (1, Universita` di Trieste - Italy; (2) INAF - Osservatorio Astronomico di Trieste - Italy; (3) MPIA

arxiv:astro-ph/0610805 v2 · 2006-10-26 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QFUPTAPAWQYQZG6R5JSTB4HY6E}

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.

Cited by

1 paper in Pith

Receipt and verification

First computed	2026-07-04T15:52:24.482609Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8168f981e0b4310c9bd1ea6530f0f8f12b53efedf84b733020c29c1f801ab4ed

Aliases

arxiv: astro-ph/0610805 · arxiv_version: astro-ph/0610805v2 · doi: 10.48550/arxiv.astro-ph/0610805 · pith_short_12: QFUPTAPAWQYQ · pith_short_16: QFUPTAPAWQYQZG6R · pith_short_8: QFUPTAPA

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/QFUPTAPAWQYQZG6R5JSTB4HY6E \
  | 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: 8168f981e0b4310c9bd1ea6530f0f8f12b53efedf84b733020c29c1f801ab4ed

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5ba174fd2cdb60a1ce30f5d73f04afed87cb57dc53d45dbc6adb4744ff5ff1ef",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2006-10-26T21:19:54Z",
    "title_canon_sha256": "d43382472988544770e6c86b7a95df1417a53002e91e06f06756f03c84dc1a4f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0610805",
    "kind": "arxiv",
    "version": 2
  }
}