Pith Number

pith:SGUHBU2N

pith:2016:SGUHBU2NI6DOBXF2TSV6I6O7FN

not attested not anchored not stored refs pending

Observational evidence of a slow downfall of star formation efficiency in massive galaxies during the last 10 Gyr

Anton M. Koekemoer, Corentin Schreiber, David Elbaz, Emanuele Daddi, Laure Ciesla, Marc Rafelski, Maurilio Pannella, Tao Wang

arxiv:1601.04226 v3 · 2016-01-16 · 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{SGUHBU2NI6DOBXF2TSV6I6O7FN}

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	2026-05-18T01:17:17.749765Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

91a870d34d4786e0dcba9cabe479df2b640a3069f4296fcfbc92e8f4715aa2ab

Aliases

arxiv: 1601.04226 · arxiv_version: 1601.04226v3 · doi: 10.48550/arxiv.1601.04226 · pith_short_12: SGUHBU2NI6DO · pith_short_16: SGUHBU2NI6DOBXF2 · pith_short_8: SGUHBU2N

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/SGUHBU2NI6DOBXF2TSV6I6O7FN \
  | 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: 91a870d34d4786e0dcba9cabe479df2b640a3069f4296fcfbc92e8f4715aa2ab

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9c07eb20a7e12ef1aa85f4efd1aa88afbce038453dbf8880001a79fb4f2dfbf0",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2016-01-16T23:03:12Z",
    "title_canon_sha256": "32a5103f39e0416f7e52ec8fc16336138425f220b421d73546e6d339571b050f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1601.04226",
    "kind": "arxiv",
    "version": 3
  }
}