Pith Number

pith:CWD6NAKD

pith:2011:CWD6NAKDTSZO3C3G6ZL3UG5RUW

not attested not anchored not stored refs pending

Implications of a non-universal IMF from C, N, and O abundances in very metal-poor Galactic stars and damped Lyman-alpha absorbers

K. Bekki, T. Tsujimoto

arxiv:1103.0033 v2 · 2011-02-28 · 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{CWD6NAKDTSZO3C3G6ZL3UG5RUW}

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	2026-05-18T02:03:01.965463Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1587e681439cb2ed8b66f657ba1bb1a5a856d7d07e97d34de712237422b9ac82

Aliases

arxiv: 1103.0033 · arxiv_version: 1103.0033v2 · doi: 10.48550/arxiv.1103.0033 · pith_short_12: CWD6NAKDTSZO · pith_short_16: CWD6NAKDTSZO3C3G · pith_short_8: CWD6NAKD

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/CWD6NAKDTSZO3C3G6ZL3UG5RUW \
  | 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: 1587e681439cb2ed8b66f657ba1bb1a5a856d7d07e97d34de712237422b9ac82

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e81e9d2957f7d0e042de06db25e2d20e59e9c27b5398e0329c76398730db0df4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2011-02-28T21:41:38Z",
    "title_canon_sha256": "db0d07d81e214de83474870f39e9f95d0e6ba4ba86a00b1e9173525175a9a83b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1103.0033",
    "kind": "arxiv",
    "version": 2
  }
}