Pith Number

pith:FWJ3KNEI

pith:2011:FWJ3KNEIXFLBLV64I2U4I3ER3U

not attested not anchored not stored refs pending

Delta Scorpii 2011 periastron: visual and digital photometric campaign

Costantino Sigismondi

arxiv:1109.5865 v1 · 2011-09-27 · astro-ph.SR · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FWJ3KNEIXFLBLV64I2U4I3ER3U}

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	2026-05-18T04:12:11.095133Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2d93b53488b95615d7dc46a9c46c91dd000ed7b8695bcc5721ef938d726eb0e0

Aliases

arxiv: 1109.5865 · arxiv_version: 1109.5865v1 · doi: 10.48550/arxiv.1109.5865 · pith_short_12: FWJ3KNEIXFLB · pith_short_16: FWJ3KNEIXFLBLV64 · pith_short_8: FWJ3KNEI

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/FWJ3KNEIXFLBLV64I2U4I3ER3U \
  | 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: 2d93b53488b95615d7dc46a9c46c91dd000ed7b8695bcc5721ef938d726eb0e0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d749d83e96c2801af8b6e6d6a66d1c6efc3782fccdf790db035e9904a7ac472e",
    "cross_cats_sorted": [
      "astro-ph.IM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2011-09-27T12:54:17Z",
    "title_canon_sha256": "0aeee61f55f126ce573b95bd6e1ca22ca34e7f8afcdc6df3a8a633aa8273563a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1109.5865",
    "kind": "arxiv",
    "version": 1
  }
}