Pith Number

pith:NBZFI7IK

pith:2007:NBZFI7IKH4PDHWX435635TJBVS

not attested not anchored not stored refs pending

A Correlation Between Galaxy Morphology and MgII Halo Absorption Strength

Charles C. Steidel (Caltech), Christopher W. Churchill (NMSU), Glenn G. Kacprzak (NMSU), Jessica L. Evans (NMSU), Michael T. Murphy (Cambridge)

arxiv:astro-ph/0703377 v1 · 2007-03-14 · 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{NBZFI7IKH4PDHWX435635TJBVS}

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	2026-05-18T04:29:05.638549Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6872547d0a3f1e33dafcdf7dbecd21ac976a8f967209623b23ce0039fafe32ec

Aliases

arxiv: astro-ph/0703377 · arxiv_version: astro-ph/0703377v1 · doi: 10.48550/arxiv.astro-ph/0703377 · pith_short_12: NBZFI7IKH4PD · pith_short_16: NBZFI7IKH4PDHWX4 · pith_short_8: NBZFI7IK

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/NBZFI7IKH4PDHWX435635TJBVS \
  | 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: 6872547d0a3f1e33dafcdf7dbecd21ac976a8f967209623b23ce0039fafe32ec

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bdb1a948f7ddc2eee84fbd4d552c8852cc7e4590c07b75e50d5586aefcc992f7",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2007-03-14T22:20:44Z",
    "title_canon_sha256": "c3252d0e076c8662f5d8faabf84de22eb6577c021a1037d65b6d582cd1c6c0e4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0703377",
    "kind": "arxiv",
    "version": 1
  }
}