Pith Number

pith:B76HEQDI

pith:2018:B76HEQDIG5I3STIYK6OZI4EBCR

not attested not anchored not stored refs pending

Ratio of black hole to galaxy mass of an extremely red dust-obscured galaxy at z = 2.52

Alessandro Marconi, Kazushi Iwasawa, Kenta Matsuoka, Masatoshi Imanishi, Megumi Shidatsu, Tohru Nagao, Wei-hao Wang, Yoshihiro Ueda, Yoshiki Toba, Yuichi Terashima

arxiv:1811.07902 v1 · 2018-11-19 · 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{B76HEQDIG5I3STIYK6OZI4EBCR}

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	2026-05-17T23:58:36.330765Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0ffc7240683751b94d18579d9470811446977aebf44507f6d3662ee10bb5fc21

Aliases

arxiv: 1811.07902 · arxiv_version: 1811.07902v1 · doi: 10.48550/arxiv.1811.07902 · pith_short_12: B76HEQDIG5I3 · pith_short_16: B76HEQDIG5I3STIY · pith_short_8: B76HEQDI

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/B76HEQDIG5I3STIYK6OZI4EBCR \
  | 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: 0ffc7240683751b94d18579d9470811446977aebf44507f6d3662ee10bb5fc21

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "93d810cdcfa7cf711174bbe7d7ae4fb01ae55773cb3626c109a1657edea52a06",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2018-11-19T19:00:01Z",
    "title_canon_sha256": "bdc0eea8922435c21077374b71e3864ad1f6b6044134679cec8488483acdc246"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1811.07902",
    "kind": "arxiv",
    "version": 1
  }
}