Pith Number

pith:D4Y3IEG3

pith:2026:D4Y3IEG3WXK2N2QPMPYTXFE4W6

not attested not anchored not stored refs pending

The limits of feedback from active galactic nuclei

Andrew Pontzen, Hiranya V. Peiris, Joop Schaye, Matthieu Schaller

arxiv:2605.16483 v1 · 2026-05-15 · astro-ph.GA · 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{D4Y3IEG3WXK2N2QPMPYTXFE4W6}

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	2026-05-20T00:02:24.361579Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1f31b410dbb5d5a6ea0f63f13b949cb7bbca7ef217c0ba2a75f3015694558d7a

Aliases

arxiv: 2605.16483 · arxiv_version: 2605.16483v1 · doi: 10.48550/arxiv.2605.16483 · pith_short_12: D4Y3IEG3WXK2 · pith_short_16: D4Y3IEG3WXK2N2QP · pith_short_8: D4Y3IEG3

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/D4Y3IEG3WXK2N2QPMPYTXFE4W6 \
  | 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: 1f31b410dbb5d5a6ea0f63f13b949cb7bbca7ef217c0ba2a75f3015694558d7a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9e745801654c41c340eeebfc270b1c736f6db0e8a2f13d753f770795bcd398d1",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2026-05-15T18:00:00Z",
    "title_canon_sha256": "220d845cf7a9f292a8081de3075a840d398c7ce4efb4d556b47148e59f019b0c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.16483",
    "kind": "arxiv",
    "version": 1
  }
}