Pith Number

pith:27YW5XIB

pith:2007:27YW5XIBXXS43GOG4JK2XGPLW7

not attested not anchored not stored refs pending

The Evolution of AGN Host Galaxies: From Blue to Red and the Influence of Large-Scale Structures

A. M. Koekemoer, B. D. Lehmer, C. Vignali, D. M. Alexander, D. P. Schneider, F. E. Bauer, G. Hasinger, G. Szokoly, J. Bergeron, J. D. Silverman, P. Popesso, P. Rosati, P. Tozzi, R. Gilli, T. Miyaji, V. Mainieri, W. N. Brandt

arxiv:0709.3455 v2 · 2007-09-21 · 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{27YW5XIBXXS43GOG4JK2XGPLW7}

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	2026-07-04T17:05:48.917371Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d7f16edd01bde5cd99c6e255ab99ebb7e1cbe805d76e05fe7f4bc5055e3d2d7e

Aliases

arxiv: 0709.3455 · arxiv_version: 0709.3455v2 · doi: 10.48550/arxiv.0709.3455 · pith_short_12: 27YW5XIBXXS4 · pith_short_16: 27YW5XIBXXS43GOG · pith_short_8: 27YW5XIB

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/27YW5XIBXXS43GOG4JK2XGPLW7 \
  | 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: d7f16edd01bde5cd99c6e255ab99ebb7e1cbe805d76e05fe7f4bc5055e3d2d7e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "025831f381ae39b0c718e51eec14f1ead99cc7f91d7eef0e798a50a7720f839e",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2007-09-21T14:52:14Z",
    "title_canon_sha256": "6550e8b83afcefc74cc8ade4fae37ed087db266444f73eae85d87e91f1069936"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0709.3455",
    "kind": "arxiv",
    "version": 2
  }
}