Pith Number

pith:W6A26XKS

pith:2017:W6A26XKSNFLDKMRGJ5AHR27XMB

not attested not anchored not stored refs pending

Orbital Period Changes in WZ Sagittae

(2) Center for Backyard Astrophysics, (3) Middlebury Coll., (4) Univ. de Huelva. (5) Viktor Rydberg-Djursholm), David Skillman (2), Donn Starkey (2), Douglas Slauson (2), Enrique de Miguel (4), Geoffrey Stone (2), George Roberts (2), Gordon Myers (2), Helena Uthas (5), Jerry Foote (2), Jim Jones (2), Jim Seargeant (2) ((1) Columbia Univ., Jonathan Kemp (3), Joseph Patterson (1), Kenneth Menzies (2), Lewis M. Cook (2), Michael Potter (2), Richard Sabo (2), Robert Koff (2), Thomas Krajci (2), Tonny Vanmunster (2), Tut Campbell (2), Yenal Ogmen (2)

arxiv:1801.00189 v1 · 2017-12-30 · 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{W6A26XKSNFLDKMRGJ5AHR27XMB}

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	2026-05-18T00:15:18.998588Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b781af5d5269563532264f4078ebf7604e034ec77dc0af05d0a4d5954a191afc

Aliases

arxiv: 1801.00189 · arxiv_version: 1801.00189v1 · doi: 10.48550/arxiv.1801.00189 · pith_short_12: W6A26XKSNFLD · pith_short_16: W6A26XKSNFLDKMRG · pith_short_8: W6A26XKS

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/W6A26XKSNFLDKMRGJ5AHR27XMB \
  | 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: b781af5d5269563532264f4078ebf7604e034ec77dc0af05d0a4d5954a191afc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "80fba7e90002092b39b2b8561bb5fd02636249b2365d5e75ce469ded4020f47e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2017-12-30T20:35:06Z",
    "title_canon_sha256": "fa1459f1703c6552059b7f6d45d0e9125ce0080665d2cb426c53261e0139e071"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.00189",
    "kind": "arxiv",
    "version": 1
  }
}