Pith Number

pith:COY4L4CA

pith:2016:COY4L4CAQZ3GCSPRJOVFZ6NKCB

not attested not anchored not stored refs pending

The metallicity evolution of blue compact dwarf galaxies from the intermediate redshift to the local Universe

Chengyun Ye, Guanwen Fang, Jianhui Lian, Ning Hu, Xu Kong

arxiv:1601.04318 v1 · 2016-01-17 · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{COY4L4CAQZ3GCSPRJOVFZ6NKCB}

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	2026-05-18T01:19:01.343729Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

13b1c5f04086766149f14baa5cf9aa105d8d573af6cdfce52bd0103f7b6c7224

Aliases

arxiv: 1601.04318 · arxiv_version: 1601.04318v1 · doi: 10.48550/arxiv.1601.04318 · pith_short_12: COY4L4CAQZ3G · pith_short_16: COY4L4CAQZ3GCSPR · pith_short_8: COY4L4CA

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/COY4L4CAQZ3GCSPRJOVFZ6NKCB \
  | 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: 13b1c5f04086766149f14baa5cf9aa105d8d573af6cdfce52bd0103f7b6c7224

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5a02d4d6efcdff208d469965f50221b553c519614bcad9373782ef5ef04ce55b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2016-01-17T17:57:07Z",
    "title_canon_sha256": "4f252ec68b088b14049b3fa1daa2e00841d76bc1fc09539118ca56908bb0d9ae"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1601.04318",
    "kind": "arxiv",
    "version": 1
  }
}