Pith Number

pith:7BZYG7MG

pith:2011:7BZYG7MGZX533VUWEHMWJ5HGFY

not attested not anchored not stored refs pending

Gas Accretion onto a Supermassive Black Hole: a step to model AGN feedback

2), (2) INAF-Trieste, 3) ((1) UNLV, (3) Princeton), Daniel Proga (1, Kentaro Nagamine (1), Paramita Barai (1

arxiv:1112.3525 v2 · 2011-12-15 · 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{7BZYG7MGZX533VUWEHMWJ5HGFY}

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	2026-05-18T04:04:52.970553Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f873837d86cdfbbdd69621d964f4e62e24e45a0429b0f70552b2b81395250391

Aliases

arxiv: 1112.3525 · arxiv_version: 1112.3525v2 · doi: 10.48550/arxiv.1112.3525 · pith_short_12: 7BZYG7MGZX53 · pith_short_16: 7BZYG7MGZX533VUW · pith_short_8: 7BZYG7MG

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/7BZYG7MGZX533VUWEHMWJ5HGFY \
  | 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: f873837d86cdfbbdd69621d964f4e62e24e45a0429b0f70552b2b81395250391

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "722dae3c065865bf7483acd10d80853802991912e00233392f2cf93d06e787c4",
    "cross_cats_sorted": [
      "astro-ph.GA",
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-12-15T14:47:01Z",
    "title_canon_sha256": "c0551ec575498ac1a23f6f75146e351feea7d36db45b5fc46f3ee80adf6d9115"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1112.3525",
    "kind": "arxiv",
    "version": 2
  }
}