Pith Number

pith:2QW544G2

pith:2011:2QW544G2V2ZUZOABL6275IQ7GY

not attested not anchored not stored refs pending

The post-nova population

Alessandro Ederoclite, Claus Tappert, Linda Schmidtobreick, Nikolaus Vogt

arxiv:1110.1926 v1 · 2011-10-10 · 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{2QW544G2V2ZUZOABL6275IQ7GY}

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	2026-05-18T04:11:19.291904Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d42dde70daaeb34cb8015fb5fea21f360bac60a3189b274520160a8806fa7b26

Aliases

arxiv: 1110.1926 · arxiv_version: 1110.1926v1 · doi: 10.48550/arxiv.1110.1926 · pith_short_12: 2QW544G2V2ZU · pith_short_16: 2QW544G2V2ZUZOAB · pith_short_8: 2QW544G2

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/2QW544G2V2ZUZOABL6275IQ7GY \
  | 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: d42dde70daaeb34cb8015fb5fea21f360bac60a3189b274520160a8806fa7b26

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ec0f204e7f48fda057f23f794827c53350d7a8b0b31b429dec98579c2e044cdf",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2011-10-10T05:07:23Z",
    "title_canon_sha256": "a171d889f80ffe2491401cdf7f62d9a82569d4b146bb7cafdbc07ea5672d8a4d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1110.1926",
    "kind": "arxiv",
    "version": 1
  }
}