Pith Number

pith:YZZSBGUA

pith:2007:YZZSBGUAFHWII2MKDHJVLC3CZ4

not attested not anchored not stored refs pending

The colour selection of distant galaxies in the UKIDSS Ultra-Deep Survey Early Data Release

C. J. Conselice, C. Simpson, Ian Smail, J. S. Dunlop, K. P. Lane, K. Sekiguchi, M. Cirasuolo, M. G. Watson, M. J. Page, O. Almaini, P. Hirst, R. J. McLure, S. Foucaud

arxiv:0704.2136 v1 · 2007-04-17 · 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{YZZSBGUAFHWII2MKDHJVLC3CZ4}

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	2026-07-04T15:44:14.592907Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c673209a8029ec84698a19d3558b62cf37b250e2692be443ccaf1597dd7b43b4

Aliases

arxiv: 0704.2136 · arxiv_version: 0704.2136v1 · doi: 10.48550/arxiv.0704.2136 · pith_short_12: YZZSBGUAFHWI · pith_short_16: YZZSBGUAFHWII2MK · pith_short_8: YZZSBGUA

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/YZZSBGUAFHWII2MKDHJVLC3CZ4 \
  | 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: c673209a8029ec84698a19d3558b62cf37b250e2692be443ccaf1597dd7b43b4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1265667f4652cfdefd6cb4ae6cdb057e681718807048735344e3d8daf222ed99",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2007-04-17T17:07:13Z",
    "title_canon_sha256": "8ba3dedc64009e5d74f69f837027bc27209e5c6ced0f5ec1b213ae11f7166b38"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0704.2136",
    "kind": "arxiv",
    "version": 1
  }
}