Pith Number

pith:7WQ44VZP

pith:2013:7WQ44VZPCU2FREQUZ7H55EGNXP

not attested not anchored not stored refs pending

The supermassive black hole mass - S\'ersic index relations for bulges and elliptical galaxies

Alessandro Marconi, Alister W. Graham, Eleonora Sani, Giulia Savorgnan, Leslie K. Hunt, Marina Vika, Simon P. Driver

arxiv:1306.2679 v1 · 2013-06-12 · 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	2026-05-18T01:49:23.418615Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fda1ce572f1534589214cfcfde90cdbbf7c98afce51fe84f4713f7894a332712

Aliases

arxiv: 1306.2679 · arxiv_version: 1306.2679v1 · doi: 10.48550/arxiv.1306.2679 · pith_short_12: 7WQ44VZPCU2F · pith_short_16: 7WQ44VZPCU2FREQU · pith_short_8: 7WQ44VZP

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/7WQ44VZPCU2FREQUZ7H55EGNXP \
  | 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: fda1ce572f1534589214cfcfde90cdbbf7c98afce51fe84f4713f7894a332712

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "659675f9f87ffaad22011ddd0ed598db0207ebe8eebca2c841874fe07239437e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2013-06-12T00:05:51Z",
    "title_canon_sha256": "55ea0f632f26accb604d91081cd958112a098edb01f5f577353313eb3d4537ce"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1306.2679",
    "kind": "arxiv",
    "version": 1
  }
}