Pith Number

pith:NARBVTON

pith:2020:NARBVTON2DDSMUHOPUWUHYKFRI

not attested not anchored not stored refs pending

Self-Supervised Representation Learning for Astronomical Images

George Stein, Md Abul Hayat, Mustafa Mustafa, Peter Harrington, Zarija Luki\'c

arxiv:2012.13083 v2 · 2020-12-24 · astro-ph.IM · cs.AI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NARBVTON2DDSMUHOPUWUHYKFRI}

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	2026-07-05T04:35:55.676583Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

68221acdcdd0c72650ee7d2d43e1458a0f06d83dc26b0d39c54fe8a86344d53b

Aliases

arxiv: 2012.13083 · arxiv_version: 2012.13083v2 · doi: 10.48550/arxiv.2012.13083 · pith_short_12: NARBVTON2DDS · pith_short_16: NARBVTON2DDSMUHO · pith_short_8: NARBVTON

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/NARBVTON2DDSMUHOPUWUHYKFRI \
  | 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: 68221acdcdd0c72650ee7d2d43e1458a0f06d83dc26b0d39c54fe8a86344d53b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "586b176e4eee3839d192dd78223d878da0205e2650a9908d5dd71a20b05885b8",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2020-12-24T03:25:36Z",
    "title_canon_sha256": "13388eb1433adc3b12e92a4d69fb8790bebb6c3c56fc8d07fceab9d6bf8ad25d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2012.13083",
    "kind": "arxiv",
    "version": 2
  }
}