Pith Number

pith:OYVI27PN

pith:2026:OYVI27PN6T5DHYMCQXIBWYRL26

not attested not anchored not stored refs pending

A Multimodal Approach to Star--Galaxy Separation using SPHEREx Spectrophotometry and DESI Legacy Survey Imaging

Kendrick Nguyen, Richard M. Feder, Sean Bruton, Uro\v{s} Seljak

arxiv:2607.20797 v1 · 2026-07-22 · astro-ph.CO · 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{OYVI27PN6T5DHYMCQXIBWYRL26}

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	2026-07-24T00:23:35.287478Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

762a8d7dedf4fa33e18285d01b622bd799ea0cb6f48cda067715cfcba8cf0ed8

Aliases

arxiv: 2607.20797 · arxiv_version: 2607.20797v1 · doi: 10.48550/arxiv.2607.20797 · pith_short_12: OYVI27PN6T5D · pith_short_16: OYVI27PN6T5DHYMC · pith_short_8: OYVI27PN

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/OYVI27PN6T5DHYMCQXIBWYRL26 \
  | 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: 762a8d7dedf4fa33e18285d01b622bd799ea0cb6f48cda067715cfcba8cf0ed8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b1106d802545037a6a1ad25fa63e03deb67cfd2ca8adce0ba77315e877732dfe",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2026-07-22T23:54:49Z",
    "title_canon_sha256": "6aa99c03fe7328aa2a388c22c1c86a5409d1864749f4fa4626fe94a3d51056a7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.20797",
    "kind": "arxiv",
    "version": 1
  }
}