Pith Number

pith:WFMWEAR6

pith:2015:WFMWEAR6OVFH2B55PUB4D47TIZ

not attested not anchored not stored refs pending

A color-period diagram for the open cluster M 48 (NGC 2548), and its rotational age

Federico Spada, J\"org Weingrill, Klaus G. Strassmeier, Sydney A. Barnes, Thomas Granzer

arxiv:1511.00554 v1 · 2015-11-02 · 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{WFMWEAR6OVFH2B55PUB4D47TIZ}

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	2026-05-18T01:28:12.017928Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b15962023e754a7d07bd7d03c1f3f34664cbe06a74b6ef461b08fbfc4dba68e8

Aliases

arxiv: 1511.00554 · arxiv_version: 1511.00554v1 · doi: 10.48550/arxiv.1511.00554 · pith_short_12: WFMWEAR6OVFH · pith_short_16: WFMWEAR6OVFH2B55 · pith_short_8: WFMWEAR6

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/WFMWEAR6OVFH2B55PUB4D47TIZ \
  | 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: b15962023e754a7d07bd7d03c1f3f34664cbe06a74b6ef461b08fbfc4dba68e8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c53de33d867f9e4d97244e0bcc18cd335ae9c1658bcb7902e0bc4cfeb46d087e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2015-11-02T15:40:06Z",
    "title_canon_sha256": "8c750c4b4ebe6b13bff1b87603b9cf25ae4d8c7fe72754bbdc921d608daf592d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1511.00554",
    "kind": "arxiv",
    "version": 1
  }
}