Pith Number

pith:2OUOBKWN

pith:2026:2OUOBKWNGITQRSITMBUQDQUZLT

not attested not anchored not stored refs pending

Optical observations of the fast nova V1674 Herculis

G. C. Anupama, Kulinder Pal Singh, L. S. Sonith, Neeraj Singh Rawat, U. S. Kamath, Yash Bhargava

arxiv:2602.19940 v2 · 2026-02-23 · astro-ph.HE · 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{2OUOBKWNGITQRSITMBUQDQUZLT}

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	2026-07-07T02:18:35.411187Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d3a8e0aacd322708c913606901c2995cefe46a125b09bce8c913818e8a43e37f

Aliases

arxiv: 2602.19940 · arxiv_version: 2602.19940v2 · doi: 10.48550/arxiv.2602.19940 · pith_short_12: 2OUOBKWNGITQ · pith_short_16: 2OUOBKWNGITQRSIT · pith_short_8: 2OUOBKWN

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/2OUOBKWNGITQRSITMBUQDQUZLT \
  | 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: d3a8e0aacd322708c913606901c2995cefe46a125b09bce8c913818e8a43e37f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ef1f0c7d42bce73547590ff62df01fc108481ed1f9726bd511904b0e04b8ed37",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2026-02-23T15:11:52Z",
    "title_canon_sha256": "354b074a0128fd2681fae2e46bc315c5544826146b9822b143fcb21eb4358a19"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2602.19940",
    "kind": "arxiv",
    "version": 2
  }
}