Pith Number

pith:K2Z5WOOG

pith:2015:K2Z5WOOGSBZRZIUUYKGJ4OBX3S

not attested not anchored not stored refs pending

The evolution of the equivalent width of the Ha emission line and specific star-formation rate in star-forming galaxies at 1<z<5

A. Fontana, D.J. McLeod, E. Marmol-Queralto, F. Cullen, J.S. Dunlop, R.J. Mclure

arxiv:1511.01911 v2 · 2015-11-05 · 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{K2Z5WOOGSBZRZIUUYKGJ4OBX3S}

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	2026-05-18T01:10:33.009075Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

56b3db39c690731ca294c28c9e3837dca0eb1770108c46f0cd7ae8b5db9adec4

Aliases

arxiv: 1511.01911 · arxiv_version: 1511.01911v2 · doi: 10.48550/arxiv.1511.01911 · pith_short_12: K2Z5WOOGSBZR · pith_short_16: K2Z5WOOGSBZRZIUU · pith_short_8: K2Z5WOOG

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/K2Z5WOOGSBZRZIUUYKGJ4OBX3S \
  | 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: 56b3db39c690731ca294c28c9e3837dca0eb1770108c46f0cd7ae8b5db9adec4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "879fad7ebb822151345a9861dcf5be2c68a197a30777c27d221b3f7fa976eb40",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2015-11-05T21:05:43Z",
    "title_canon_sha256": "6681362dcb03a8ebe73c1b987c3cc124cd3647decdd4f995c8018a8f0cd0cb32"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1511.01911",
    "kind": "arxiv",
    "version": 2
  }
}