Pith Number

pith:PGQHEYEH

pith:2016:PGQHEYEHMS4LZ2ETTGF6ERQBW2

not attested not anchored not stored refs pending

The ALHAMBRA survey: evolution of galaxy spectral segregation

A. Del Olmo, A. Fern\'andez-Soto, A. Molino, B. Ascaso, C. Husillos, C. L\'opez-Sanjuan, D. Crist\'obal-Hornillos, E. Alfaro, F. J. Castander, F. Prada, I. M\'arquez, J. A. L. Aguerri, J. Cabrera-Ca\~no, J. Cepa, J. Masegosa, J. M. Quintana, J. Perea, K. Viironen, L. Infante, Ll. Hurtado-Gil, M. Cervi\~no, M. Moles, M. Povic, M. Stefanon, N. Ben\'itez, P. Arnalte-Mur, R. M. Gonz\'alez Delgado, S. Paredes, T. Aparicio-Villegas, T. Broadhurst, V.J. Mart\'inez

arxiv:1601.03668 v1 · 2016-01-14 · astro-ph.GA · astro-ph.CO

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PGQHEYEHMS4LZ2ETTGF6ERQBW2}

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	2026-05-18T01:19:24.978561Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

79a072608764b8bce893998be24601b680f72900ca7868a96afb4e895c7d2ff4

Aliases

arxiv: 1601.03668 · arxiv_version: 1601.03668v1 · doi: 10.48550/arxiv.1601.03668 · pith_short_12: PGQHEYEHMS4L · pith_short_16: PGQHEYEHMS4LZ2ET · pith_short_8: PGQHEYEH

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/PGQHEYEHMS4LZ2ETTGF6ERQBW2 \
  | 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: 79a072608764b8bce893998be24601b680f72900ca7868a96afb4e895c7d2ff4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9307905b1d416ce345d278150df5021f9ecbb8954d97afdb7382704b5fc4fdb6",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2016-01-14T17:18:31Z",
    "title_canon_sha256": "3c4f755297c4de1ea20cc1cd9f275cfb789e4c1856f2ecd89287e4c511e4ccdd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1601.03668",
    "kind": "arxiv",
    "version": 1
  }
}