Pith Number

pith:ZX7OOSIO

pith:2015:ZX7OOSIO67M74Q42F2CGKPVSRZ

not attested not anchored not stored refs pending

IR study of nova V2468 Cyg from early decline to the coronal phase

Amanda Day-Wilson, A. Raj, Charles E. Woodward, David K. Lynch, Michael Sitko, Mina Pak, N. M. Ashok, Ray W. Russell, R. Brad Perry, Richard J. Rudy, Sang Chul Kim

arxiv:1502.04917 v1 · 2015-02-17 · 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{ZX7OOSIO67M74Q42F2CGKPVSRZ}

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	2026-05-18T01:41:01.187210Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cdfee7490ef7d9fe439a2e84653eb28e7af763a9eba8ca8c1e4d5140affab2e1

Aliases

arxiv: 1502.04917 · arxiv_version: 1502.04917v1 · doi: 10.48550/arxiv.1502.04917 · pith_short_12: ZX7OOSIO67M7 · pith_short_16: ZX7OOSIO67M74Q42 · pith_short_8: ZX7OOSIO

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/ZX7OOSIO67M74Q42F2CGKPVSRZ \
  | 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: cdfee7490ef7d9fe439a2e84653eb28e7af763a9eba8ca8c1e4d5140affab2e1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "603ebb4e96391e53381b0efdbb7c19deaeb2738347723a5480cb00ffc6488373",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2015-02-17T15:13:54Z",
    "title_canon_sha256": "9aa56e1fa28a22c14c4cb71ffcabc3d85d6e24ffa240bfe23fc1ae11381f706e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1502.04917",
    "kind": "arxiv",
    "version": 1
  }
}