Pith Number

pith:DRKTDJJ6

pith:2015:DRKTDJJ6CM7XXZXQVZ6GGUMPC2

not attested not anchored not stored refs pending

Constraining Neutrino Cooling using the Hot White Dwarf Luminosity Function in the Globular Cluster 47 Tucanae

Bradley Hansen, Harvey Richer, Jason Kalirai, Jeremy Heyl, Ryan Goldsbury, Shane Frewen

arxiv:1507.05665 v1 · 2015-07-20 · 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{DRKTDJJ6CM7XXZXQVZ6GGUMPC2}

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	2026-05-18T01:34:47.587803Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1c5531a53e133f7be6f0ae7c63518f168f55f581c3227dadc4f26f4da309867c

Aliases

arxiv: 1507.05665 · arxiv_version: 1507.05665v1 · doi: 10.48550/arxiv.1507.05665 · pith_short_12: DRKTDJJ6CM7X · pith_short_16: DRKTDJJ6CM7XXZXQ · pith_short_8: DRKTDJJ6

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/DRKTDJJ6CM7XXZXQVZ6GGUMPC2 \
  | 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: 1c5531a53e133f7be6f0ae7c63518f168f55f581c3227dadc4f26f4da309867c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ca42fbe184e22e3360b13458ef8747c435063acfbb6673d9ec90e725e2421455",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2015-07-20T21:59:57Z",
    "title_canon_sha256": "3213c9b5dd372ecbf7ecd51d883ccb8b99fbccfe839029999e65172f7b8453a2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1507.05665",
    "kind": "arxiv",
    "version": 1
  }
}