Pith Number

pith:HUBVMUDK

pith:2010:HUBVMUDK2U7R27MA574QOC7LIR

not attested not anchored not stored refs pending

The Supermassive Black Hole in M84 Revisited

(2) University of Hertfordshire), Aaron J. Barth (1), Irvine, Jonelle L. Walsh (1), Marc Sarzi (2) ((1) University of California

arxiv:1008.0005 v1 · 2010-07-30 · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HUBVMUDK2U7R27MA574QOC7LIR}

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	2026-05-18T02:06:00.761115Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3d0356506ad53f1d7d80eff9070beb44680c8f12f9302965e82fe6cc7f38611a

Aliases

arxiv: 1008.0005 · arxiv_version: 1008.0005v1 · doi: 10.48550/arxiv.1008.0005 · pith_short_12: HUBVMUDK2U7R · pith_short_16: HUBVMUDK2U7R27MA · pith_short_8: HUBVMUDK

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/HUBVMUDK2U7R27MA574QOC7LIR \
  | 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: 3d0356506ad53f1d7d80eff9070beb44680c8f12f9302965e82fe6cc7f38611a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1356cf96e5e122569a889a98ca4320d3a4861815db92c0701552166922b18acb",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2010-07-30T20:10:00Z",
    "title_canon_sha256": "ed58aace059890fc15b26eac972d39738d0a28c3b3c57cab074cb3fe6fadcab7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1008.0005",
    "kind": "arxiv",
    "version": 1
  }
}