Pith Number

pith:6C444EGU

pith:2012:6C444EGU5TK5EK5NXCLIHILVDZ

not attested not anchored not stored refs pending

On the binarity of the classical Cepheid X Sgr from interferometric observations

B. Nisini, D. Lorenzetti, G. Bono, G. Li Causi, S. Antoniucci, S. Pedicelli, T. Giannini

arxiv:1211.4698 v1 · 2012-11-20 · 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{6C444EGU5TK5EK5NXCLIHILVDZ}

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	2026-05-18T01:53:02.581300Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f0b9ce10d4ecd5d22badb89683a1751e5ff5369a6a61fa168611bf80fb154295

Aliases

arxiv: 1211.4698 · arxiv_version: 1211.4698v1 · doi: 10.48550/arxiv.1211.4698 · pith_short_12: 6C444EGU5TK5 · pith_short_16: 6C444EGU5TK5EK5N · pith_short_8: 6C444EGU

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/6C444EGU5TK5EK5NXCLIHILVDZ \
  | 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: f0b9ce10d4ecd5d22badb89683a1751e5ff5369a6a61fa168611bf80fb154295

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1ab8f2c70b19a624b2dd6d3aa8fb73fe0cc0c9c2ac0924be87937890a603532e",
    "cross_cats_sorted": [
      "astro-ph.IM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2012-11-20T10:11:02Z",
    "title_canon_sha256": "5248fd2b799533f28cabb14e41f0dd9693eba3f33e35a54ff9d0981df29e8a0c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1211.4698",
    "kind": "arxiv",
    "version": 1
  }
}