Pith Number

pith:VTTD2NQN

pith:2016:VTTD2NQN6SVZMIKDQRRRE2RHTV

not attested not anchored not stored refs pending

An Adaptive Homomorphic Aperture Photometry Algorithm for Merging Galaxies

Chorng-Yuan Hwang, Jen-Chao Huang

arxiv:1603.07087 v1 · 2016-03-23 · astro-ph.IM · 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{VTTD2NQN6SVZMIKDQRRRE2RHTV}

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	2026-05-18T00:51:17.783838Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ace63d360df4ab9621438463126a279d4179b907476e169a8d3fe22b0f88fc4f

Aliases

arxiv: 1603.07087 · arxiv_version: 1603.07087v1 · doi: 10.48550/arxiv.1603.07087 · pith_short_12: VTTD2NQN6SVZ · pith_short_16: VTTD2NQN6SVZMIKD · pith_short_8: VTTD2NQN

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/VTTD2NQN6SVZMIKDQRRRE2RHTV \
  | 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: ace63d360df4ab9621438463126a279d4179b907476e169a8d3fe22b0f88fc4f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "11e35fccdfaa9799b22f0c9e4963f1253d7933762071e73c354280729ec5bf22",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2016-03-23T08:13:54Z",
    "title_canon_sha256": "cd4bf3ec0edaf5a70083c488210be77c3e39780f38115c3e7f30d197cf7fe201"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1603.07087",
    "kind": "arxiv",
    "version": 1
  }
}