Pith Number

pith:DALAE6K7

pith:1999:DALAE6K7QY6FVL5ZZMGNF5BMR3

not attested not anchored not stored refs pending

Hubble Space Telescope imaging of the CFRS and LDSS redshift surveys - IV. Influence of mergers in the evolution of faint field galaxies from z~1

D. Crampton, D. Schade, F.Hammer, J. Brinchmann, K. Glazebrook, L. Tresse, M. Colless, O. Le Fevre, R. Abraham, R.S. Ellis, S.J. Lilly, T. Broadhurst

arxiv:astro-ph/9909211 v1 · 1999-09-13 · 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{DALAE6K7QY6FVL5ZZMGNF5BMR3}

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	2026-05-18T04:27:04.123477Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

181602795f863c5aafb9cb0cd2f42c8ec52159b22b64ae425d4c34d9626aeead

Aliases

arxiv: astro-ph/9909211 · arxiv_version: astro-ph/9909211v1 · doi: 10.48550/arxiv.astro-ph/9909211 · pith_short_12: DALAE6K7QY6F · pith_short_16: DALAE6K7QY6FVL5Z · pith_short_8: DALAE6K7

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/DALAE6K7QY6FVL5ZZMGNF5BMR3 \
  | 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: 181602795f863c5aafb9cb0cd2f42c8ec52159b22b64ae425d4c34d9626aeead

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "626519e0dc74ec4ed9feb2a5476f3505c7a33f0545768995f7d02ff3c31d649b",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1999-09-13T18:09:23Z",
    "title_canon_sha256": "8c3b4fe13c555a9c2ce90612ea8ab00fb192edf5f593a6b6e94050a52d7af72b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9909211",
    "kind": "arxiv",
    "version": 1
  }
}