Pith Number

pith:ENA2VFY4

pith:2016:ENA2VFY4PNOWOUCGPWGGDMQWRC

not attested not anchored not stored refs pending

How much can we trust high-resolution spectroscopic stellar chemical abundances?

A. R. Casey, H. M. Tabernero, I. Ram\'irez, J. Mel\'endez, L. Casamiquela, P. Jofr\'e, S. Blanco-Cuaresma, S. S. Bhat, T. Masseron, T. Nordlander, U. Heiter

arxiv:1609.09071 v1 · 2016-09-28 · astro-ph.SR · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ENA2VFY4PNOWOUCGPWGGDMQWRC}

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	2026-05-18T01:03:40.247468Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2341aa971c7b5d6750467d8c61b216889b551368053cfa38736b6bff17c40311

Aliases

arxiv: 1609.09071 · arxiv_version: 1609.09071v1 · doi: 10.48550/arxiv.1609.09071 · pith_short_12: ENA2VFY4PNOW · pith_short_16: ENA2VFY4PNOWOUCG · pith_short_8: ENA2VFY4

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/ENA2VFY4PNOWOUCGPWGGDMQWRC \
  | 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: 2341aa971c7b5d6750467d8c61b216889b551368053cfa38736b6bff17c40311

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "04f354988a600907e2d9554eea69ee342e72c1ff8a7dca0d733737e6dbeed524",
    "cross_cats_sorted": [
      "astro-ph.IM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2016-09-28T20:00:01Z",
    "title_canon_sha256": "caaecf7995ff2ac3f099dc69c1f7e7c8fe79352cac953bc09fc67002f2f7920d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1609.09071",
    "kind": "arxiv",
    "version": 1
  }
}