Pith Number

pith:ZH4NVJHB

pith:2018:ZH4NVJHB3OSDJBFNEV3EQBCZJ7

not attested not anchored not stored refs pending

The oxygen abundance gradients in the gas discs of galaxies in the EAGLE simulation

Claudia del P. Lagos, Joop Schaye, Matthieu Schaller, Patricia B. Tissera, Richard G. Bower, Robert A. Crain, Tom Theuns, Yetli Rosas-Guevara

arxiv:1806.04575 v1 · 2018-06-12 · 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{ZH4NVJHB3OSDJBFNEV3EQBCZJ7}

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	2026-05-18T00:01:59.078878Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c9f8daa4e1dba43484ad25764804594fc609e33f8cc11c5eb3836e3979d4793d

Aliases

arxiv: 1806.04575 · arxiv_version: 1806.04575v1 · doi: 10.48550/arxiv.1806.04575 · pith_short_12: ZH4NVJHB3OSD · pith_short_16: ZH4NVJHB3OSDJBFN · pith_short_8: ZH4NVJHB

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/ZH4NVJHB3OSDJBFNEV3EQBCZJ7 \
  | 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: c9f8daa4e1dba43484ad25764804594fc609e33f8cc11c5eb3836e3979d4793d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "301e5f22e58ebc7c8604cc933837f24d16d2b79eeda8484464e32c422ce89602",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2018-06-12T14:53:55Z",
    "title_canon_sha256": "3ac1097ef386b7b06b5a9989fc551167df3ca9dc2c158a2b8a15ba831f9bb91a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1806.04575",
    "kind": "arxiv",
    "version": 1
  }
}