Pith Number

pith:CRR66QFM

pith:2013:CRR66QFM5QYJF6YP4IO53N5WG6

not attested not anchored not stored refs pending

The 10830 He I Absorption Line Among Metal-Poor Subdwarfs

Andrea K. Dupree (CfA/SAO), Graeme H. Smith (UCO/Lick), Jay Strader (Michigan State)

arxiv:1302.3517 v1 · 2013-02-14 · 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{CRR66QFM5QYJF6YP4IO53N5WG6}

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	2026-05-18T01:51:41.184123Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1463ef40acec3092fb0fe21dddb7b637aa3542bd7947c0beb43d97818245c7af

Aliases

arxiv: 1302.3517 · arxiv_version: 1302.3517v1 · doi: 10.48550/arxiv.1302.3517 · pith_short_12: CRR66QFM5QYJ · pith_short_16: CRR66QFM5QYJF6YP · pith_short_8: CRR66QFM

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/CRR66QFM5QYJF6YP4IO53N5WG6 \
  | 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: 1463ef40acec3092fb0fe21dddb7b637aa3542bd7947c0beb43d97818245c7af

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0c673f1d102cb9f7bf82c6267b1518beea7ca678737d8168326a1f3235cbfb0a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2013-02-14T19:26:46Z",
    "title_canon_sha256": "9499c468368eb538aad44a44328d965f47ec27704f49fec16ff61bf0a3265375"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1302.3517",
    "kind": "arxiv",
    "version": 1
  }
}