Pith Number

pith:4Q6Y3U3E

pith:2018:4Q6Y3U3ERYOYFDWG6FCHIKA6PX

not attested not anchored not stored refs pending

Early chemical evolution of Zn driven by magnetorotational supernovae and the pathway to the solar Zn composition

Nobuya Nishimura, Takuji Tsujimoto

arxiv:1808.02524 v1 · 2018-08-07 · 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{4Q6Y3U3ERYOYFDWG6FCHIKA6PX}

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	2026-05-18T00:07:05.667884Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e43d8dd3648e1d828ec6f14474281e7dcb7ed703464b34e0196c65912e96180d

Aliases

arxiv: 1808.02524 · arxiv_version: 1808.02524v1 · doi: 10.48550/arxiv.1808.02524 · pith_short_12: 4Q6Y3U3ERYOY · pith_short_16: 4Q6Y3U3ERYOYFDWG · pith_short_8: 4Q6Y3U3E

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/4Q6Y3U3ERYOYFDWG6FCHIKA6PX \
  | 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: e43d8dd3648e1d828ec6f14474281e7dcb7ed703464b34e0196c65912e96180d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "473aee729cc694610cb3240e03fa0ac60f24f67e62f231245a3c40714fe0e623",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2018-08-07T19:09:40Z",
    "title_canon_sha256": "e5bf0da4781b4251446bead25162ee19b9daebc658c7e9556126194da304d4d8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1808.02524",
    "kind": "arxiv",
    "version": 1
  }
}