Pith Number

pith:IFLUNWYF

pith:2020:IFLUNWYF7BFPTFMGN4ALPNHTBM

not attested not anchored not stored refs pending

Detailed abundances in a sample of very metal poor stars

E. Caffau, F. Spite, M. Aoki, M. Spite, N. Prantzos, P. Bonifacio, P. Fran\c{c}ois, S. Wanajo, W. Aoki

arxiv:2007.03994 v2 · 2020-07-08 · astro-ph.SR · 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{IFLUNWYF7BFPTFMGN4ALPNHTBM}

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	2026-07-05T01:39:02.691049Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

415746db05f84af995866f00b7b4f30b3bb3b826a3a6cbe478fe191116911661

Aliases

arxiv: 2007.03994 · arxiv_version: 2007.03994v2 · doi: 10.48550/arxiv.2007.03994 · pith_short_12: IFLUNWYF7BFP · pith_short_16: IFLUNWYF7BFPTFMG · pith_short_8: IFLUNWYF

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/IFLUNWYF7BFPTFMGN4ALPNHTBM \
  | 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: 415746db05f84af995866f00b7b4f30b3bb3b826a3a6cbe478fe191116911661

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "94bf1748c92b886cab530336974e1f1e9b24c242274f728057dd5b7175ee944f",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2020-07-08T09:53:54Z",
    "title_canon_sha256": "18ce1afdfe35e6dfa54eb5ce079f297f50863fab9c0ccc86a4e69519f7f66c55"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2007.03994",
    "kind": "arxiv",
    "version": 2
  }
}