Pith Number

pith:7CXOOU4X

pith:2015:7CXOOU4XJCXEBLMQ53YKREOLAJ

not attested not anchored not stored refs pending

When do stars in 47 Tucanae lose their mass?

Elisa Antolini, Harvey B. Richer, Jason Kalirai, Javiera Parada, Jeremy Heyl, Paola Marigo, Ryan Goldsbury

arxiv:1502.07306 v2 · 2015-02-25 · 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{7CXOOU4XJCXEBLMQ53YKREOLAJ}

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	2026-05-18T01:29:46.441935Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f8aee7539748ae40ad90eef0a891cb0272c8266500fe540a3f29b22078803274

Aliases

arxiv: 1502.07306 · arxiv_version: 1502.07306v2 · doi: 10.48550/arxiv.1502.07306 · pith_short_12: 7CXOOU4XJCXE · pith_short_16: 7CXOOU4XJCXEBLMQ · pith_short_8: 7CXOOU4X

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/7CXOOU4XJCXEBLMQ53YKREOLAJ \
  | 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: f8aee7539748ae40ad90eef0a891cb0272c8266500fe540a3f29b22078803274

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dbc4eed50d086a90e53c51f91672e325feaed57e035cc8fcd05623aa25115f1b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2015-02-25T19:04:04Z",
    "title_canon_sha256": "630ee2229b6a2afb68f8965ad4b9d10f0e52afd9237c3e15185bd9f5add5fe3b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1502.07306",
    "kind": "arxiv",
    "version": 2
  }
}