Pith Number

pith:25QR4DDI

pith:2013:25QR4DDIIVFU2H64OL6O4Q7GJC

not attested not anchored not stored refs pending

Nova KT Eri 2009: Infrared studies of a very fast and small amplitude He/N nova

Ashish Raj, D.P.K. Banerjee, N.M. Ashok

arxiv:1305.7460 v1 · 2013-05-31 · 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{25QR4DDIIVFU2H64OL6O4Q7GJC}

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	2026-05-18T01:49:39.080916Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d7611e0c68454b4d1fdc72fcee43e6489681e90d166ad8565e4b009a4d0aedd4

Aliases

arxiv: 1305.7460 · arxiv_version: 1305.7460v1 · doi: 10.48550/arxiv.1305.7460 · pith_short_12: 25QR4DDIIVFU · pith_short_16: 25QR4DDIIVFU2H64 · pith_short_8: 25QR4DDI

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/25QR4DDIIVFU2H64OL6O4Q7GJC \
  | 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: d7611e0c68454b4d1fdc72fcee43e6489681e90d166ad8565e4b009a4d0aedd4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e933e54f3631b8dac9b47e042ae0039a53870e49ce8f8a35409f577be891ca2e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2013-05-31T15:42:10Z",
    "title_canon_sha256": "dd380b9693b946fc22f6c24c7f7cde593ffb806fe79aa4bf1086b1525d68a34c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1305.7460",
    "kind": "arxiv",
    "version": 1
  }
}