Pith Number

pith:YU2XWXVG

pith:2012:YU2XWXVG2HB7TSOQ3NH7WJVAXT

not attested not anchored not stored refs pending

Effects Of Circum-nuclear Disk Gas Evolution And The Spin Of Central Black Holes

Albino Perego, Margarita Petkova, Marta Volonteri, Massimo Dotti, Umberto Maio

arxiv:1203.1877 v2 · 2012-03-08 · astro-ph.HE · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YU2XWXVG2HB7TSOQ3NH7WJVAXT}

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	2026-05-18T01:58:12.877292Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c5357b5ea6d1c3f9c9d0db4ffb26a0bcdf134a793b6280cffac85fc3540034f5

Aliases

arxiv: 1203.1877 · arxiv_version: 1203.1877v2 · doi: 10.48550/arxiv.1203.1877 · pith_short_12: YU2XWXVG2HB7 · pith_short_16: YU2XWXVG2HB7TSOQ · pith_short_8: YU2XWXVG

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/YU2XWXVG2HB7TSOQ3NH7WJVAXT \
  | 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: c5357b5ea6d1c3f9c9d0db4ffb26a0bcdf134a793b6280cffac85fc3540034f5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2d1bc64c0297780539605b3c62f18cbb3e082bf26ae9482f08f02d69532faaaf",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2012-03-08T18:27:38Z",
    "title_canon_sha256": "592844171b131e927e9ef07f34d126b8a100164d4cc99ee680293472fd493897"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1203.1877",
    "kind": "arxiv",
    "version": 2
  }
}