Pith Number

pith:L3BL6WOZ

pith:2015:L3BL6WOZTW3I65YMDJ7TYLYC6D

not attested not anchored not stored refs pending

Observational constraints on the progenitors of core-collapse supernovae : the case for missing high mass stars

S. J. Smartt

arxiv:1504.02635 v2 · 2015-04-10 · astro-ph.SR · astro-ph.CO · astro-ph.HE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{L3BL6WOZTW3I65YMDJ7TYLYC6D}

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	2026-05-18T02:16:20.005623Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5ec2bf59d99db68f770c1a7f3c2f02f0d063e0569cef4493d77d6ee3b21bee44

Aliases

arxiv: 1504.02635 · arxiv_version: 1504.02635v2 · doi: 10.48550/arxiv.1504.02635 · pith_short_12: L3BL6WOZTW3I · pith_short_16: L3BL6WOZTW3I65YM · pith_short_8: L3BL6WOZ

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/L3BL6WOZTW3I65YMDJ7TYLYC6D \
  | 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: 5ec2bf59d99db68f770c1a7f3c2f02f0d063e0569cef4493d77d6ee3b21bee44

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8363019c55dbcf57da616487958c9a82283ee342d1e6ed4ec6b580bce00a4843",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2015-04-10T11:00:38Z",
    "title_canon_sha256": "c0c1ff57ed4ba9e2f9ba9633a53590ffe755b9ea62280f6e046491541ad0e38a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.02635",
    "kind": "arxiv",
    "version": 2
  }
}