Pith Number

pith:USBWQLMJ

pith:2017:USBWQLMJQ5YI4H5GXIA2BAUX4P

not attested not anchored not stored refs pending

Improving galaxy morphology with machine learning

D. H. Stalder, F. G. da Costa, P. H. Barchi, R. R. de Carvalho, R. R. Rosa, R. Sautter, T. C. Moura

arxiv:1705.06818 v1 · 2017-05-18 · astro-ph.GA · 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{USBWQLMJQ5YI4H5GXIA2BAUX4P}

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	2026-05-18T00:44:11.226868Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a483682d8987708e1fa6ba01a08297e3e732c0688a0abfe28f2cdd3054f294be

Aliases

arxiv: 1705.06818 · arxiv_version: 1705.06818v1 · doi: 10.48550/arxiv.1705.06818 · pith_short_12: USBWQLMJQ5YI · pith_short_16: USBWQLMJQ5YI4H5G · pith_short_8: USBWQLMJ

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/USBWQLMJQ5YI4H5GXIA2BAUX4P \
  | 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: a483682d8987708e1fa6ba01a08297e3e732c0688a0abfe28f2cdd3054f294be

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "aabf34c3af643ae68381fd93de28c213065e69dac1381a6143bd25cca9ea20ea",
    "cross_cats_sorted": [
      "astro-ph.IM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2017-05-18T22:28:27Z",
    "title_canon_sha256": "1878f4d1fe407fc25adb19f72fca0c707deb7d6787f20d57bad608a273e8e68f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1705.06818",
    "kind": "arxiv",
    "version": 1
  }
}