Pith Number

pith:C73HJWTI

pith:2025:C73HJWTI3IENCHEPU45KKIHJEN

not attested not anchored not stored refs pending

The Hubble Image Similarity Project

J. E. G. Peek, Richard L. White

arxiv:2504.17688 v1 · 2025-04-24 · 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{C73HJWTI3IENCHEPU45KKIHJEN}

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	2026-07-05T10:53:34.078149Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

17f674da68da08d11c8fa73aa520e92355a16f6ca83eb1a7bf77c83dfd2df041

Aliases

arxiv: 2504.17688 · arxiv_version: 2504.17688v1 · doi: 10.48550/arxiv.2504.17688 · pith_short_12: C73HJWTI3IEN · pith_short_16: C73HJWTI3IENCHEP · pith_short_8: C73HJWTI

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/C73HJWTI3IENCHEPU45KKIHJEN \
  | 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: 17f674da68da08d11c8fa73aa520e92355a16f6ca83eb1a7bf77c83dfd2df041

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3061f06ae3558901b9d9aa237ba59c75916a49629b16e696cc3d211c3e74cdfb",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2025-04-24T15:58:00Z",
    "title_canon_sha256": "0308aa2d899f6c58c17b5cb452a32324bfd87c85b6742e2e68ab94104c89ae4a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2504.17688",
    "kind": "arxiv",
    "version": 1
  }
}