Pith Number

pith:HPQA3EDU

pith:2015:HPQA3EDUOT6ULE56ZKPT55GFWL

not attested not anchored not stored refs pending

Raven and the Center of Maffei 1: Multi-Object Adaptive Optics Observations of the Center of a Nearby Elliptical Galaxy and the Detection of an Intermediate Age Population

C. Blain, C. Bradley, D. R. Andersen, M. Akiyama, O. Lardiere, S. Oya, T. J. Davidge, Y. H. Ono

arxiv:1509.04338 v1 · 2015-09-14 · 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{HPQA3EDUOT6ULE56ZKPT55GFWL}

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	2026-05-18T01:30:57.449084Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3be00d907474fd4593beca9f3ef4c5b2ee2ef93d81f892c2f8c38310d086697f

Aliases

arxiv: 1509.04338 · arxiv_version: 1509.04338v1 · doi: 10.48550/arxiv.1509.04338 · pith_short_12: HPQA3EDUOT6U · pith_short_16: HPQA3EDUOT6ULE56 · pith_short_8: HPQA3EDU

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/HPQA3EDUOT6ULE56ZKPT55GFWL \
  | 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: 3be00d907474fd4593beca9f3ef4c5b2ee2ef93d81f892c2f8c38310d086697f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b9cae96bcd781d1fcda8d17a878a8d33d3f8c9db2039e3416e75a5e9780ea4a3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2015-09-14T21:42:45Z",
    "title_canon_sha256": "1181e7d30540f9dfcca93a28e20280b7e0f55a317066a14fc79750ecf6ba5523"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1509.04338",
    "kind": "arxiv",
    "version": 1
  }
}