Pith Number

pith:3R4Y3TSF

pith:2010:3R4Y3TSFFKDMFQR7IUPVTG5UBE

not attested not anchored not stored refs pending

The spectroscopic evolution of the symbiotic-like recurrent nova V407 Cygni during its 2010 outburst. I. The shock and its evolution

Acad. Sci. Czech Republic), A. P. Beardmore (Univ. of Leicester), G. M. Wahlgren (Catholic Univ. of America), INFN-Pisa), J. P. Osborne, K. L. Page, M. \v{S}lechta, P. Koubsky, S. N. Shore (Univ. di Pisa, Tartu Obs.), T. Augusteijn (Nordic Optical Telescope), T. Liimets (NOT, V. Votruba (Astronomical Institute

arxiv:1012.4847 v2 · 2010-12-22 · astro-ph.SR · astro-ph.HE

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{3R4Y3TSFFKDMFQR7IUPVTG5UBE}

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	2026-05-18T02:04:18.865287Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dc798dce452a86c2c23f451f599bb4093604cae6ba7b2c0976055f459bf5cf87

Aliases

arxiv: 1012.4847 · arxiv_version: 1012.4847v2 · doi: 10.48550/arxiv.1012.4847 · pith_short_12: 3R4Y3TSFFKDM · pith_short_16: 3R4Y3TSFFKDMFQR7 · pith_short_8: 3R4Y3TSF

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/3R4Y3TSFFKDMFQR7IUPVTG5UBE \
  | 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: dc798dce452a86c2c23f451f599bb4093604cae6ba7b2c0976055f459bf5cf87

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3494543195470e6534d2030c51819b1ff75db417ecdaafedd7920f4e968943b0",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2010-12-22T00:09:13Z",
    "title_canon_sha256": "a8af172fbc9ff4b3261ce04969429150d16c061bed5b909e57425d648079b3fa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1012.4847",
    "kind": "arxiv",
    "version": 2
  }
}