Pith Number

pith:A7BXKTOX

pith:2011:A7BXKTOXGCV4TPBZY2ACZU25W4

not attested not anchored not stored refs pending

Chemical Enrichment in the Carbon-enhanced Damped Lyman $\alpha$ System

Chiaki Kobayashi, Ken'ich Nomoto, Nozomu Tominaga

arxiv:1101.1227 v2 · 2011-01-06 · astro-ph.CO · 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{A7BXKTOXGCV4TPBZY2ACZU25W4}

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	2026-05-18T02:04:12.270211Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

07c3754dd730abc9bc39c6802cd35db70a6974f580828901f413471bd2550ca2

Aliases

arxiv: 1101.1227 · arxiv_version: 1101.1227v2 · doi: 10.48550/arxiv.1101.1227 · pith_short_12: A7BXKTOXGCV4 · pith_short_16: A7BXKTOXGCV4TPBZ · pith_short_8: A7BXKTOX

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/A7BXKTOXGCV4TPBZY2ACZU25W4 \
  | 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: 07c3754dd730abc9bc39c6802cd35db70a6974f580828901f413471bd2550ca2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9e6abc3f3bbdeb03b406029dc1f12d72dbb1b16dcb34c94b992092711b0362a7",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-01-06T14:37:10Z",
    "title_canon_sha256": "2e9ecc8abb2722ba6d5985fa7d30edb86865fc96e363e24e14ec90ba114cdea5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1101.1227",
    "kind": "arxiv",
    "version": 2
  }
}