Pith Number

pith:NBUJ4EQC

pith:2011:NBUJ4EQCAB26XT67SK6L52MMUK

not attested not anchored not stored refs pending

Behavior of [S/Fe] in Very Metal-Poor Stars from the S I 1.046 micron Lines Revisited

Masahide Takada-Hidai, Yoichi Takeda

arxiv:1111.2185 v1 · 2011-11-09 · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NBUJ4EQCAB26XT67SK6L52MMUK}

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	2026-05-18T01:59:43.219940Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

68689e12020075ebcfdf92bcbee98ca28c90373319bcb9c5a50fff7f81da9ced

Aliases

arxiv: 1111.2185 · arxiv_version: 1111.2185v1 · doi: 10.48550/arxiv.1111.2185 · pith_short_12: NBUJ4EQCAB26 · pith_short_16: NBUJ4EQCAB26XT67 · pith_short_8: NBUJ4EQC

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/NBUJ4EQCAB26XT67SK6L52MMUK \
  | 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: 68689e12020075ebcfdf92bcbee98ca28c90373319bcb9c5a50fff7f81da9ced

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6f38eafdac516fbc2d38eda9641f71177660e7db312a761f4b35fd60b5293baf",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2011-11-09T12:14:13Z",
    "title_canon_sha256": "95fe6b6f9753c1edc6772ab6882e0fea7b6dee480e6fb6480c4b01ca93e96ae5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1111.2185",
    "kind": "arxiv",
    "version": 1
  }
}