Pith Number

pith:NIGIOSPK

pith:2012:NIGIOSPKUJLR2BYBOTRYH7C3FX

not attested not anchored not stored refs pending

The Chemical composition of the post-AGB F-supergiant CRL 2688

Arturo Manchado, Bacham E. Reddy, D. A. Garcia-Hernandez, Miho N. Ishigaki, Mudumba Parthasarathy, Pedro Garc\'ia-Lario, Wako Aoki, Yoichi Takeda

arxiv:1205.6101 v4 · 2012-05-28 · astro-ph.SR · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NIGIOSPKUJLR2BYBOTRYH7C3FX}

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	2026-05-18T01:57:16.611084Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6a0c8749eaa2571d070174e383fc5b2de0012275603e978a8cdc5cfb557c6962

Aliases

arxiv: 1205.6101 · arxiv_version: 1205.6101v4 · doi: 10.48550/arxiv.1205.6101 · pith_short_12: NIGIOSPKUJLR · pith_short_16: NIGIOSPKUJLR2BYB · pith_short_8: NIGIOSPK

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/NIGIOSPKUJLR2BYBOTRYH7C3FX \
  | 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: 6a0c8749eaa2571d070174e383fc5b2de0012275603e978a8cdc5cfb557c6962

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c2bdfdc29117fd6546517952d39a8d5a5122e48a87e7df9ce76bd62191a4c934",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2012-05-28T12:52:22Z",
    "title_canon_sha256": "6e7954785c2425591c027d943731580ce1995b01168af16496c53271881da397"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1205.6101",
    "kind": "arxiv",
    "version": 4
  }
}