Pith Number

pith:QLBMJ2MF

pith:2013:QLBMJ2MFVTGFI7EESZTIKNEPK2

not attested not anchored not stored refs pending

Evolutionary tracks of massive stars during formation

Michael D. Smith

arxiv:1311.3352 v1 · 2013-11-14 · astro-ph.GA · 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{QLBMJ2MFVTGFI7EESZTIKNEPK2}

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	2026-05-18T01:46:31.248690Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

82c2c4e985accc547c84966685348f568c6a24dab6072df67424cce4d29a430b

Aliases

arxiv: 1311.3352 · arxiv_version: 1311.3352v1 · doi: 10.48550/arxiv.1311.3352 · pith_short_12: QLBMJ2MFVTGF · pith_short_16: QLBMJ2MFVTGFI7EE · pith_short_8: QLBMJ2MF

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/QLBMJ2MFVTGFI7EESZTIKNEPK2 \
  | 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: 82c2c4e985accc547c84966685348f568c6a24dab6072df67424cce4d29a430b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "82eb05bcb9f233a1f71c7e2dbeeeec796e4d14a2fce1a277ea33b98a73a129d5",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2013-11-14T00:34:13Z",
    "title_canon_sha256": "1390d73ee98a0ecc41186a41bce63655ec6b45923dd3ae4d17d1ce6596f8b8cd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1311.3352",
    "kind": "arxiv",
    "version": 1
  }
}