Pith Number

pith:DJPG3TYM

pith:2013:DJPG3TYMIIEPKL7E6S7J56WJO2

not attested not anchored not stored refs pending

Disk Assembly and the M_BH-sigma Relation of Supermassive Black Holes

Frank C. van den Bosch, Stelios Kazantzidis, Victor P. Debattista

arxiv:1301.2669 v1 · 2013-01-12 · astro-ph.GA · astro-ph.CO

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

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	2026-05-18T01:52:13.053895Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1a5e6dcf0c4208f52fe4f4be9efac976a13d4982f08afbce7612ca510e1751e3

Aliases

arxiv: 1301.2669 · arxiv_version: 1301.2669v1 · doi: 10.48550/arxiv.1301.2669 · pith_short_12: DJPG3TYMIIEP · pith_short_16: DJPG3TYMIIEPKL7E · pith_short_8: DJPG3TYM

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/DJPG3TYMIIEPKL7E6S7J56WJO2 \
  | 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: 1a5e6dcf0c4208f52fe4f4be9efac976a13d4982f08afbce7612ca510e1751e3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a1577deaed3e561b80dada5f4a4cf72fda5e1298b78dfa7ad8f7bc5ebd08b985",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2013-01-12T10:10:02Z",
    "title_canon_sha256": "6370176feccb208ce52f660c362d291ca8efe1a2ad1b6633468867c037464341"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1301.2669",
    "kind": "arxiv",
    "version": 1
  }
}