Pith Number

pith:QQIFUZ4Q

pith:2018:QQIFUZ4QO275ZVJOO7ZLDYO44S

not attested not anchored not stored refs pending

The Spectroscopic Variations of the FU Orionis Object V960 Mon

Akira Arai, Jun Takahashi, Kumiko Morihana, Satoshi Honda, Yoichi Itoh, Yuhei Takagi, Yumiko Oasa

arxiv:1801.00883 v1 · 2018-01-03 · 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{QQIFUZ4QO275ZVJOO7ZLDYO44S}

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	2026-05-18T00:23:27.996774Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

84105a679076bfdcd52e77f2b1e1dce4ba05c9c7e654348f6a675e86c5fe9460

Aliases

arxiv: 1801.00883 · arxiv_version: 1801.00883v1 · doi: 10.48550/arxiv.1801.00883 · pith_short_12: QQIFUZ4QO275 · pith_short_16: QQIFUZ4QO275ZVJO · pith_short_8: QQIFUZ4Q

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/QQIFUZ4QO275ZVJOO7ZLDYO44S \
  | 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: 84105a679076bfdcd52e77f2b1e1dce4ba05c9c7e654348f6a675e86c5fe9460

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fc1d0317c6f68f6577d743f570b319d3955534c24975abfca50e0b09a78132d9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2018-01-03T02:18:31Z",
    "title_canon_sha256": "7ad9c51646ae06c4eb464010dd2f13bdba0d957e1a8b37720917b2f808377794"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.00883",
    "kind": "arxiv",
    "version": 1
  }
}