Pith Number

pith:D6B3LNCV

pith:2006:D6B3LNCVOR6G3H2RYM3P7T57E7

not attested not anchored not stored refs pending

Evolution of supermassive black holes

Marta Volonteri

arxiv:astro-ph/0602630 v1 · 2006-02-28 · astro-ph

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{D6B3LNCVOR6G3H2RYM3P7T57E7}

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	2026-05-18T01:40:32.341153Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1f83b5b455747c6d9f51c336ffcfbf27c04aa9beaefb96776c0df0458929da48

Aliases

arxiv: astro-ph/0602630 · arxiv_version: astro-ph/0602630v1 · doi: 10.48550/arxiv.astro-ph/0602630 · pith_short_12: D6B3LNCVOR6G · pith_short_16: D6B3LNCVOR6G3H2R · pith_short_8: D6B3LNCV

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/D6B3LNCVOR6G3H2RYM3P7T57E7 \
  | 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: 1f83b5b455747c6d9f51c336ffcfbf27c04aa9beaefb96776c0df0458929da48

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3d5f47bb30d34b8be00a63eba595fa9fdb1d6fc749163fcd84977c421fd8c47e",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2006-02-28T19:02:59Z",
    "title_canon_sha256": "207f16c5baa0c720e3236f44b50ddd694d702bea8e4c61dc33e3868f0025624a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0602630",
    "kind": "arxiv",
    "version": 1
  }
}