Pith Number

pith:RW7KQ2AL

pith:2012:RW7KQ2ALBUJ2727VOOXFZZPBQZ

not attested not anchored not stored refs pending

The X-ray Evolution of the Symbiotic Star V407 Cygni during its 2010 Outburst

Davide Donato, Jennifer Sokoloski, Koji Mukai, Laura Chomiuk, Thomas Nelson

arxiv:1201.5645 v1 · 2012-01-26 · 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{RW7KQ2ALBUJ2727VOOXFZZPBQZ}

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	2026-05-18T00:21:29.588782Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8dbea8680b0d13afebf573ae5ce5e1867b7ddbb2f87799763afe201cfac21e64

Aliases

arxiv: 1201.5645 · arxiv_version: 1201.5645v1 · doi: 10.48550/arxiv.1201.5645 · pith_short_12: RW7KQ2ALBUJ2 · pith_short_16: RW7KQ2ALBUJ2727V · pith_short_8: RW7KQ2AL

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/RW7KQ2ALBUJ2727VOOXFZZPBQZ \
  | 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: 8dbea8680b0d13afebf573ae5ce5e1867b7ddbb2f87799763afe201cfac21e64

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "86db689f939ce65809de05f8203ed084f9e6a72ec8ede782df304d2fc53015b7",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2012-01-26T21:00:12Z",
    "title_canon_sha256": "68dd3f6c7fcfac4d8d0a4b067444025e17a2f3e5a741f45efaefcb314098beec"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1201.5645",
    "kind": "arxiv",
    "version": 1
  }
}