Pith Number

pith:MEKNJKQM

pith:2009:MEKNJKQMV6USYYEK2LNDQ3CTSL

not attested not anchored not stored refs pending

Feedback from central black holes in elliptical galaxies. II: Can purely mechanical energy feedback models work?

Jeremiah P. Ostriker (Princeton University, Luca Ciotti (University of Bologna), Min-Su Shin (Princeton University), University of Cambridge)

arxiv:0905.4294 v2 · 2009-05-27 · 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{MEKNJKQMV6USYYEK2LNDQ3CTSL}

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	2026-05-18T04:29:42.932554Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6114d4aa0cafa92c608ad2da386c5392e3e89d1372a7dc54bb003c562963c462

Aliases

arxiv: 0905.4294 · arxiv_version: 0905.4294v2 · doi: 10.48550/arxiv.0905.4294 · pith_short_12: MEKNJKQMV6US · pith_short_16: MEKNJKQMV6USYYEK · pith_short_8: MEKNJKQM

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/MEKNJKQMV6USYYEK2LNDQ3CTSL \
  | 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: 6114d4aa0cafa92c608ad2da386c5392e3e89d1372a7dc54bb003c562963c462

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9c92d122c5a7164d45106d6734e5c0189d50c82b3cc9f62e0a892c0274d3a1f8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2009-05-27T19:11:26Z",
    "title_canon_sha256": "6c3b8e145f377d3347f10d4790804d44088137b302b9f84593d38d6ceeed0bfa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0905.4294",
    "kind": "arxiv",
    "version": 2
  }
}