Pith Number

pith:UFNDJRZZ

pith:2026:UFNDJRZZWUCLPWZPYWTZ3NT6HV

not attested not anchored not stored refs pending

ULTIMATE-deblending I. A 50-band Ultraviolet to Mid-infrared Photometric Catalog Combining Space- and Ground-based Data in the JWST/PRIMER survey

Adriano Fontana, Benjamin Magnelli, Cheng cheng, David Elbaz, Emanuele Daddi, Emiliano Merlin, Hanwen Sun, Jiasheng Huang, Ke Xu, Longyue Chen, Luwenjia Zhou, Shuowen Jin, Tao Wang, Tiancheng Yang, Valentina Sangalli, Wei-hao Wang, Yijun Wang, Yuheng Zhang, Zhen-Kai Gao

Adding deblended ground-based data to JWST and HST photometry improves photometric redshift accuracy by 40 percent and cuts outliers by 60 percent.

arxiv:2603.05289 v4 · 2026-03-05 · astro-ph.GA · astro-ph.IM

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\pithnumber{UFNDJRZZWUCLPWZPYWTZ3NT6HV}

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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.

Claims

C1strongest claim

Compared with photometry including only HST and JWST bands, the inclusion of deblended low-resolution photometry from ground-based telescopes improves the accuracy of photometric redshifts by ∼40%, while reducing the outlier fraction by ∼60%.

C2weakest assumption

The deblending of low-resolution ground-based data accurately recovers true fluxes without introducing systematic biases that could affect the reported photo-z improvements.

C3one line summary

A new 50-band catalog combining JWST, HST and ground-based data improves photometric redshift accuracy by ~40% and reduces outliers by ~60% for galaxies up to z~8.

Formal links

1 machine-checked theorem link

Cited by

1 paper in Pith

A first [CII] view of high-z quiescent galaxies

Receipt and verification

First computed	2026-06-19T16:12:19.351820Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a15a34c739b504b7db2fc5a79db67e3d74e069f76bbaf51027fd02cad9a8b077

Aliases

arxiv: 2603.05289 · arxiv_version: 2603.05289v4 · doi: 10.48550/arxiv.2603.05289 · pith_short_12: UFNDJRZZWUCL · pith_short_16: UFNDJRZZWUCLPWZP · pith_short_8: UFNDJRZZ

Agent API

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Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/UFNDJRZZWUCLPWZPYWTZ3NT6HV \
  | 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: a15a34c739b504b7db2fc5a79db67e3d74e069f76bbaf51027fd02cad9a8b077

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "71bf41a15f3390feb1378371c3a02d00e31927a3edb0073209a2b2b326c2292f",
    "cross_cats_sorted": [
      "astro-ph.IM"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2026-03-05T15:31:04Z",
    "title_canon_sha256": "eb037bb60f0e49a013edf8131ca9c751caeea96c7cfb2c963ceac935e39ccc6c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2603.05289",
    "kind": "arxiv",
    "version": 4
  }
}