Pith Number

pith:O4LID5CR

pith:2017:O4LID5CRK3UPL3DPBK7H7SROPU

not attested not anchored not stored refs pending

The Impact of Redshift on Galaxy Morphometric Classification: case studies for SDSS, DES, LSST and HST with Morfometryka

Fabricio Ferrari, Leonardo de Albernaz Ferreira

arxiv:1707.02863 v3 · 2017-07-10 · astro-ph.GA · astro-ph.CO · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{O4LID5CRK3UPL3DPBK7H7SROPU}

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	2026-05-17T23:59:25.234823Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

771681f45156e8f5ec6f0abe7fca2e7d2afe4345e16d7c3fffb902e81c35fe0c

Aliases

arxiv: 1707.02863 · arxiv_version: 1707.02863v3 · doi: 10.48550/arxiv.1707.02863 · pith_short_12: O4LID5CRK3UP · pith_short_16: O4LID5CRK3UPL3DP · pith_short_8: O4LID5CR

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/O4LID5CRK3UPL3DPBK7H7SROPU \
  | 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: 771681f45156e8f5ec6f0abe7fca2e7d2afe4345e16d7c3fffb902e81c35fe0c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1418156fad98517df3f332a21b0d738bd9253f6c1f5bffa8ce92c26592f49f02",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "astro-ph.IM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2017-07-10T14:08:35Z",
    "title_canon_sha256": "705b7453c48133e95ca1a33af2a5f7741344383da93d26a7ea7677c9d198232c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1707.02863",
    "kind": "arxiv",
    "version": 3
  }
}