Pith Number

pith:NU4QB7RH

pith:2021:NU4QB7RHRZPGI3DFA2E4X36M7U

not attested not anchored not stored refs pending

Discovery of a 310-day Period from the Enshrouded Massive System NaSt1 (WR 122)

Alexei V. Filippenko, Anna M. Moore, Anthony F. J. Moffat, Jamie Soon, Jon C. Mauerhan, Karel A. van der Hucht, Kishalay De, Lynne A. Hillenbrand, Mansi M. Kasliwal, Matthew J. Hankins, Michael C. B. Ashley, Nathan Smith, Peredur M. Williams, Roberto Soria, Ryan M. Lau, Samaporn Tinyanont, Tony Travouillon, Weikang Zheng

arxiv:2103.08771 v2 · 2021-03-15 · 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{NU4QB7RHRZPGI3DFA2E4X36M7U}

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	2026-07-05T03:34:22.884789Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6d3900fe278e5e646c650689cbefccfd0f5ae26532b12700acb462cb905b08cf

Aliases

arxiv: 2103.08771 · arxiv_version: 2103.08771v2 · doi: 10.48550/arxiv.2103.08771 · pith_short_12: NU4QB7RHRZPG · pith_short_16: NU4QB7RHRZPGI3DF · pith_short_8: NU4QB7RH

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/NU4QB7RHRZPGI3DFA2E4X36M7U \
  | 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: 6d3900fe278e5e646c650689cbefccfd0f5ae26532b12700acb462cb905b08cf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "df1f2227e37f040998e0abee73abf408587c4047f2a07e366a92b48df3e713ab",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2021-03-15T23:54:53Z",
    "title_canon_sha256": "54048618375c4e9a90947758d389d236cf7a0b93603eb4d6658dda883a42c50a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2103.08771",
    "kind": "arxiv",
    "version": 2
  }
}