Pith Number

pith:NOC4KBAF

pith:2026:NOC4KBAFDDDZCLL4MMXPPVQGFV

not attested not anchored not stored refs pending

Identifying backsplash galaxies using machine learning

Alexander Knebe, Cameron R. Morgan, Elizaveta Sazonova, Frazer R. Pearce, James E. Taylor, Rhys Jordan, Roan Haggar, Weiguang Cui

arxiv:2607.26136 v1 · 2026-07-28 · 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{NOC4KBAFDDDZCLL4MMXPPVQGFV}

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	2026-07-30T00:08:27.328645Z
Builder	pith-number-builder-2026-05-17-v1
Signature	unsigned_v0
Schema	pith-number/v1.0

Canonical hash

6b85c5040518c7912d7c632ef7d6062d4c90d5ed3225bfaec15ff9cde7637dce

Aliases

arxiv: 2607.26136 · arxiv_version: 2607.26136v1 · doi: 10.48550/arxiv.2607.26136 · pith_short_12: NOC4KBAFDDDZ · pith_short_16: NOC4KBAFDDDZCLL4 · pith_short_8: NOC4KBAF

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/NOC4KBAFDDDZCLL4MMXPPVQGFV \
  | 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: 6b85c5040518c7912d7c632ef7d6062d4c90d5ed3225bfaec15ff9cde7637dce

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "885ca69eb799649a335c887f6a8a176ba351d9ec1fd4441473965106d9150e87",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2026-07-28T18:00:02Z",
    "title_canon_sha256": "9ce0a511a62acc15fc7715f09e24313ef75010e9c5ea265103beb499721ebcb6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.26136",
    "kind": "arxiv",
    "version": 1
  }
}