Pith Number

pith:6PPBKOZ4

pith:2003:6PPBKOZ4RN7Y2DJDA36O6RPS5D

not attested not anchored not stored refs pending

ANNz: estimating photometric redshifts using artificial neural networks

Adrian A. Collister (Institute of Astronomy, Cambridge), Ofer Lahav (University College London)

arxiv:astro-ph/0311058 v2 · 2003-11-03 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{6PPBKOZ4RN7Y2DJDA36O6RPS5D}

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.

Cited by

5 papers in Pith

Infrared-enhanced Photometric Redshifts for the Dark Energy Survey Y6 Gold catalogue

pop-cosmos: Galaxy size evolution across structural and star-formation classifications in COSMOS-Web

pop-cosmos: Disentangling galaxy properties from observables using data-driven approaches

Interpreting "Interpretability" and Explaining "Explainability" in Machine Learning in Physics

Machine Learning Techniques for Astrophysics and Cosmology: Photometric Redshifts

Receipt and verification

First computed	2026-07-04T15:48:11.792589Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f3de153b3c8b7f8d0d2306fcef45f2e8e92b86f351e53bcd9589c2af9888bacb

Aliases

arxiv: astro-ph/0311058 · arxiv_version: astro-ph/0311058v2 · doi: 10.48550/arxiv.astro-ph/0311058 · pith_short_12: 6PPBKOZ4RN7Y · pith_short_16: 6PPBKOZ4RN7Y2DJD · pith_short_8: 6PPBKOZ4

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/6PPBKOZ4RN7Y2DJDA36O6RPS5D \
  | 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: f3de153b3c8b7f8d0d2306fcef45f2e8e92b86f351e53bcd9589c2af9888bacb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "77cfdfb432b6721870d20c08e39526750018cf25aa404341523b430e50f4bb3b",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2003-11-03T22:17:54Z",
    "title_canon_sha256": "b053bd021e8ff0dd74e4af3fb7666fdacb4385bd8169839d2360276b9f249488"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0311058",
    "kind": "arxiv",
    "version": 2
  }
}