Pith Number

pith:Q3N4TH5G

pith:2018:Q3N4TH5GA7EPJZHRI6GZTW2LIN

not attested not anchored not stored refs pending

Zooming in on supermassive black holes: how resolving their gas cloud host renders their accretion episodic

Adrianne Slyz, Julien Devriendt, Ricarda S. Beckmann

arxiv:1810.01649 v1 · 2018-10-03 · 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{Q3N4TH5GA7EPJZHRI6GZTW2LIN}

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	2026-05-17T23:57:50.337614Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

86dbc99fa607c8f4e4f1478d99db4b434587ad375017acaacdb321f72dbd392e

Aliases

arxiv: 1810.01649 · arxiv_version: 1810.01649v1 · doi: 10.48550/arxiv.1810.01649 · pith_short_12: Q3N4TH5GA7EP · pith_short_16: Q3N4TH5GA7EPJZHR · pith_short_8: Q3N4TH5G

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/Q3N4TH5GA7EPJZHRI6GZTW2LIN \
  | 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: 86dbc99fa607c8f4e4f1478d99db4b434587ad375017acaacdb321f72dbd392e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f1390364bddf8ff4a6e782c72a251fbf3fe5d83513356260e8c955a860da48b4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2018-10-03T09:15:15Z",
    "title_canon_sha256": "662cd912d62a6fbf2b7b19f05f5c16d3b815ce8d0436f93c0d86e5b268fa111b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1810.01649",
    "kind": "arxiv",
    "version": 1
  }
}