Pith Number

pith:3K3Y6GWH

pith:2017:3K3Y6GWHMO4E7G6DRMT5OEHC7C

not attested not anchored not stored refs pending

Revisiting the pre-main-sequence evolution of stars I. Importance of accretion efficiency and deuterium abundance

Masanobu Kunitomo, Shigeru Ida, Taku Takeuchi, Tristan Guillot

arxiv:1702.07901 v1 · 2017-02-25 · astro-ph.SR · astro-ph.EP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{3K3Y6GWHMO4E7G6DRMT5OEHC7C}

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	2026-05-18T00:49:08.968035Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dab78f1ac763b84f9bc38b27d710e2f89a469a4372b45494867baf57583516b7

Aliases

arxiv: 1702.07901 · arxiv_version: 1702.07901v1 · doi: 10.48550/arxiv.1702.07901 · pith_short_12: 3K3Y6GWHMO4E · pith_short_16: 3K3Y6GWHMO4E7G6D · pith_short_8: 3K3Y6GWH

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/3K3Y6GWHMO4E7G6DRMT5OEHC7C \
  | 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: dab78f1ac763b84f9bc38b27d710e2f89a469a4372b45494867baf57583516b7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a0e77550afd79e60cd6e1f725eb054172c6e5e0cd06588a0b616aa779c13a7e6",
    "cross_cats_sorted": [
      "astro-ph.EP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2017-02-25T15:00:41Z",
    "title_canon_sha256": "32e513c012bba783ac9ea3b726d3b729a5f052a4ee14a8ea223e2de90f1cd9f7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1702.07901",
    "kind": "arxiv",
    "version": 1
  }
}