Pith Number

pith:2USD4PUJ

pith:2015:2USD4PUJPJDWNROYI4NVWCTIUQ

not attested not anchored not stored refs pending

Stellar Evolution Models of Young Stars: Progress and Limitations

Gregory A. Feiden

arxiv:1507.06460 v1 · 2015-07-23 · 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{2USD4PUJPJDWNROYI4NVWCTIUQ}

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	2026-05-18T01:21:31.812615Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d5243e3e897a4766c5d8471b5b0a68a437f21825598713d46873cbe96bfb2301

Aliases

arxiv: 1507.06460 · arxiv_version: 1507.06460v1 · doi: 10.48550/arxiv.1507.06460 · pith_short_12: 2USD4PUJPJDW · pith_short_16: 2USD4PUJPJDWNROY · pith_short_8: 2USD4PUJ

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/2USD4PUJPJDWNROYI4NVWCTIUQ \
  | 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: d5243e3e897a4766c5d8471b5b0a68a437f21825598713d46873cbe96bfb2301

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4552a5bb4cd528d23659e50858c8a281766b1316127be9d7704139e27b9143c4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2015-07-23T12:05:14Z",
    "title_canon_sha256": "fa500475658350163041bf36c494072212a0a8c0014029a993b6767184946ca0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1507.06460",
    "kind": "arxiv",
    "version": 1
  }
}