Pith Number

pith:ZPFKYGBF

pith:2022:ZPFKYGBFCX74MUFBSARHSC5VWY

not attested not anchored not stored refs pending

Unsupervised Galaxy Morphological Visual Representation with Deep Contrastive Learning

Bo Liang, Nan Li, Shoulin Wei, Wei Dai, Wei Lu, Yadi Li, Zhijian Zhang

arxiv:2211.07168 v1 · 2022-11-14 · 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{ZPFKYGBFCX74MUFBSARHSC5VWY}

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	2026-07-05T05:23:00.124310Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cbcaac182515ffc650a19022790bb5b60faeb052c78dea9850e9b8196243845b

Aliases

arxiv: 2211.07168 · arxiv_version: 2211.07168v1 · doi: 10.48550/arxiv.2211.07168 · pith_short_12: ZPFKYGBFCX74 · pith_short_16: ZPFKYGBFCX74MUFB · pith_short_8: ZPFKYGBF

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/ZPFKYGBFCX74MUFBSARHSC5VWY \
  | 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: cbcaac182515ffc650a19022790bb5b60faeb052c78dea9850e9b8196243845b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8bf60c15f1efb552507fb8701b34ea1b06de6dd5695222a890322a7149395bc1",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2022-11-14T08:00:54Z",
    "title_canon_sha256": "a5ece4b3ceafd4d9d08b848b537dee442cef5c6cb5b7517e24e21acf428d600b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2211.07168",
    "kind": "arxiv",
    "version": 1
  }
}