Pith Number

pith:JFWD63FH

pith:2012:JFWD63FHZAHF2QVAP7GEDEGY5P

not attested not anchored not stored refs pending

Extremely Metal-Poor Star Candidates in the SDSS

Huawei Zhang, Siyao Xu, Xiaowei Liu

arxiv:1211.1196 v1 · 2012-11-06 · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{JFWD63FHZAHF2QVAP7GEDEGY5P}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T01:53:25.108155Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

496c3f6ca7c80e5d42a07fcc4190d8ebfb9ba3f84a296aaf9090e6cb8da1a9de

Aliases

arxiv: 1211.1196 · arxiv_version: 1211.1196v1 · doi: 10.48550/arxiv.1211.1196 · pith_short_12: JFWD63FHZAHF · pith_short_16: JFWD63FHZAHF2QVA · pith_short_8: JFWD63FH

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/JFWD63FHZAHF2QVAP7GEDEGY5P \
  | 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: 496c3f6ca7c80e5d42a07fcc4190d8ebfb9ba3f84a296aaf9090e6cb8da1a9de

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ad6d5dbdc051a0cfabba1443687240e3e0313716e41830304b6e16f7e61c990e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2012-11-06T12:18:02Z",
    "title_canon_sha256": "2dbf9d5156f1cac2c942746ab5a72b25fdd51a85bc0fa5c9e925ca0a74bf3b25"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1211.1196",
    "kind": "arxiv",
    "version": 1
  }
}