Pith Number

pith:YA56UFHE

pith:2015:YA56UFHE6VLSSEBYN5DBRFFADC

not attested not anchored not stored refs pending

Supermassive black holes and their host spheroids I. Disassembling galaxies

Alister W. Graham, Giulia A. D. Savorgnan

arxiv:1511.07446 v2 · 2015-11-23 · 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{YA56UFHE6VLSSEBYN5DBRFFADC}

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	2026-05-18T01:19:00.128988Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c03bea14e4f5572910386f461894a0189779bdc0111c1677e36b4bd3a25f6606

Aliases

arxiv: 1511.07446 · arxiv_version: 1511.07446v2 · doi: 10.48550/arxiv.1511.07446 · pith_short_12: YA56UFHE6VLS · pith_short_16: YA56UFHE6VLSSEBY · pith_short_8: YA56UFHE

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/YA56UFHE6VLSSEBYN5DBRFFADC \
  | 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: c03bea14e4f5572910386f461894a0189779bdc0111c1677e36b4bd3a25f6606

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "57d0040309d96ed36379a5f3cf944f1301bf7d8a69044377e48e932c5621e96a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2015-11-23T21:00:08Z",
    "title_canon_sha256": "3ba3111e8cbc4658c77df6dfebde6b5a9ba153eafba568750be51bc5724db46f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1511.07446",
    "kind": "arxiv",
    "version": 2
  }
}