Pith Number

pith:IR4STY7D

pith:2018:IR4STY7DPHI6GUERNDSU5ICQKY

not attested not anchored not stored refs pending

Feeding supermassive black holes by collisional cascades

Christian Faber, Walter Dehnen

arxiv:1804.08499 v1 · 2018-04-23 · 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{IR4STY7DPHI6GUERNDSU5ICQKY}

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	2026-05-18T00:15:54.653450Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

447929e3e379d1e3509168e54ea050560d971b604182de56e18d49d3091a8e0f

Aliases

arxiv: 1804.08499 · arxiv_version: 1804.08499v1 · doi: 10.48550/arxiv.1804.08499 · pith_short_12: IR4STY7DPHI6 · pith_short_16: IR4STY7DPHI6GUER · pith_short_8: IR4STY7D

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/IR4STY7DPHI6GUERNDSU5ICQKY \
  | 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: 447929e3e379d1e3509168e54ea050560d971b604182de56e18d49d3091a8e0f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a65a43a405051ab18699835858c94d4c28d9520ebb3cdeff23cf20d4f9f20100",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2018-04-23T15:21:51Z",
    "title_canon_sha256": "2c8c17356c7e7bd1b5b5d981154b550c59077a2f34cf0c899a29d9956f767c82"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.08499",
    "kind": "arxiv",
    "version": 1
  }
}