Pith Number

pith:W2ASQVRJ

pith:2021:W2ASQVRJNR236WEB7JAZHMNZBE

not attested not anchored not stored refs pending

Theoretical predictions of surface light element abundances in protostellar and pre-Main Sequence phase

A. Chiavassa, A. Tumino, C. Spitaleri, E. Tognelli, L. Lamia, P.G. Prada Moroni, R.G. Pizzone, S. Degl'Innocenti

arxiv:2107.02518 v1 · 2021-07-06 · 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{W2ASQVRJNR236WEB7JAZHMNZBE}

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	2026-07-05T02:55:21.674740Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b6812856296c75bf5881fa4193b1b9091f04033353e6ae8e12dfd790a33f5f6d

Aliases

arxiv: 2107.02518 · arxiv_version: 2107.02518v1 · doi: 10.48550/arxiv.2107.02518 · pith_short_12: W2ASQVRJNR23 · pith_short_16: W2ASQVRJNR236WEB · pith_short_8: W2ASQVRJ

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/W2ASQVRJNR236WEB7JAZHMNZBE \
  | 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: b6812856296c75bf5881fa4193b1b9091f04033353e6ae8e12dfd790a33f5f6d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3236c5d28b849da48988bd2c6deb9bee841226664097532d5f670d24afa42d33",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2021-07-06T10:22:33Z",
    "title_canon_sha256": "49b684e9a4cb9f0818f8cd736844fb2d65bea8311d7bcb8769d5a20bb1d43cb0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2107.02518",
    "kind": "arxiv",
    "version": 1
  }
}