Pith Number

pith:Z4JETY7P

pith:2014:Z4JETY7POQETDV4TNLXUPV6FWA

not attested not anchored not stored refs pending

Cepheid Variables in the Flared Outer Disk of our Galaxy

John W. Menzies, Michael W. Feast, Noriyuki Matsunaga, Patricia A. Whitelock

arxiv:1406.7660 v1 · 2014-06-30 · 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{Z4JETY7POQETDV4TNLXUPV6FWA}

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	2026-05-18T01:42:45.230987Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cf1249e3ef740931d7936aef47d7c5b01c6856378e892ace91ae43588530c828

Aliases

arxiv: 1406.7660 · arxiv_version: 1406.7660v1 · doi: 10.48550/arxiv.1406.7660 · pith_short_12: Z4JETY7POQET · pith_short_16: Z4JETY7POQETDV4T · pith_short_8: Z4JETY7P

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/Z4JETY7POQETDV4TNLXUPV6FWA \
  | 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: cf1249e3ef740931d7936aef47d7c5b01c6856378e892ace91ae43588530c828

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "05c0e754dc5c62d5565ca804f9166f735b7761af29c6ec3adfbfd3b996416f1b",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2014-06-30T10:43:51Z",
    "title_canon_sha256": "d5b0a1097d743d3e2a01e20c6a3a41a9dab71d5ab4a50c030afd502031f89914"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1406.7660",
    "kind": "arxiv",
    "version": 1
  }
}