Pith Number

pith:7J6QWSJM

pith:2018:7J6QWSJMPXWMBPYQTNTH4RK4KO

not attested not anchored not stored refs pending

WASP 0639-32: a new F-type subgiant/K-type main-sequence detached eclipsing binary from the WASP project

A. M. Serenelli, C. Hellier, D. R. Anderson, J. A. Kirkby-Kent, P. F. L. Maxted, R. G. West

arxiv:1804.06718 v1 · 2018-04-18 · 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{7J6QWSJMPXWMBPYQTNTH4RK4KO}

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	2026-05-18T00:09:14.643432Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fa7d0b492c7decc0bf109b667e455c53bc6816e9470368d8996e001c1f4fd0d5

Aliases

arxiv: 1804.06718 · arxiv_version: 1804.06718v1 · doi: 10.48550/arxiv.1804.06718 · pith_short_12: 7J6QWSJMPXWM · pith_short_16: 7J6QWSJMPXWMBPYQ · pith_short_8: 7J6QWSJM

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/7J6QWSJMPXWMBPYQTNTH4RK4KO \
  | 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: fa7d0b492c7decc0bf109b667e455c53bc6816e9470368d8996e001c1f4fd0d5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ee7a085f8fe2dee13ccb2ebeb384dadb98e3f3bd599e16f76773b9c81d9b9a8b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2018-04-18T13:37:48Z",
    "title_canon_sha256": "69b68c76109c9e8bf6381aa3f3482d1358354d079cf2e80ea105893230a68a91"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.06718",
    "kind": "arxiv",
    "version": 1
  }
}