Pith Number

pith:VH4ZCRFA

pith:2016:VH4ZCRFAJW2O2IIRQXYDTHJG5J

not attested not anchored not stored refs pending

SDSS J085431.18+173730.5: The First Compact Elliptical Galaxy Hosting an Active Nucleus

Change Hee Ree, Michael Hilker, Minjin Kim, Sanjaya Paudel

arxiv:1603.07832 v1 · 2016-03-25 · 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{VH4ZCRFAJW2O2IIRQXYDTHJG5J}

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	2026-05-18T01:17:38.944180Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a9f99144a04db4ed211185f0399d26ea4fcafa52a51e6645ffb751af8e58164d

Aliases

arxiv: 1603.07832 · arxiv_version: 1603.07832v1 · doi: 10.48550/arxiv.1603.07832 · pith_short_12: VH4ZCRFAJW2O · pith_short_16: VH4ZCRFAJW2O2IIR · pith_short_8: VH4ZCRFA

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/VH4ZCRFAJW2O2IIRQXYDTHJG5J \
  | 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: a9f99144a04db4ed211185f0399d26ea4fcafa52a51e6645ffb751af8e58164d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cd9416445d8689a653b24b29c1dafaa5bb4a409d6b1740e5befa26bfdd233add",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2016-03-25T06:51:43Z",
    "title_canon_sha256": "d8e52f03944411a8d94567768984414d85f8d37a5c0cb4cdcd7e38b6623e4274"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1603.07832",
    "kind": "arxiv",
    "version": 1
  }
}