Pith Number

pith:4BYA7I5N

pith:1998:4BYA7I5NUZP2YOIC7F4FL6YXE6

not attested not anchored not stored refs pending

A blind test of photometric redshift prediction

Alberto Fernandez-Soto, Alexander S. Szalay, Amos Yahil, Andrew J. Connolly, B. Mobasher, David W. Hogg, F. D. A. Hartwick, H. K. C. Yee, Huan Lin, Istvan Csabai, Judith G. Cohen, Kenneth M. Lanzetta, Marcin Sawicki, Mark Dickinson, Mark U. SubbaRao, Paula Mazzei, Robert J. Brunner, Roger Blandford, Stephen D. J. Gwyn

arxiv:astro-ph/9801133 v1 · 1998-01-15 · 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{4BYA7I5NUZP2YOIC7F4FL6YXE6}

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	2026-07-04T16:06:04.961240Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e0700fa3ada65fac3902f97855fb17278988a1ddeeffaaae9e345f9a5244d47e

Aliases

arxiv: astro-ph/9801133 · arxiv_version: astro-ph/9801133v1 · doi: 10.48550/arxiv.astro-ph/9801133 · pith_short_12: 4BYA7I5NUZP2 · pith_short_16: 4BYA7I5NUZP2YOIC · pith_short_8: 4BYA7I5N

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/4BYA7I5NUZP2YOIC7F4FL6YXE6 \
  | 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: e0700fa3ada65fac3902f97855fb17278988a1ddeeffaaae9e345f9a5244d47e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c1babf4ef3b94243ab258073c8c4711f1a051224f762d6e6f90859bbf9bcfbc3",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1998-01-15T01:03:41Z",
    "title_canon_sha256": "d9f4d84e5a67dffa55637c36aed7ef5584f26000d2c913e5697c214c709d4324"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9801133",
    "kind": "arxiv",
    "version": 1
  }
}