Pith Number

pith:GDXTM6NB

pith:2008:GDXTM6NB4QC4ZKBIMPZ5VWNRDX

not attested not anchored not stored refs pending

Absolute Dimensions and Apsidal Motion of the Eccentric Binary V731 Cephei

B. Kucerova, H. Bakis, I. Bulut, J. W. Lee, M. Slechta, M. Wolf, M. Zejda, O. Demircan, S. Bilir, V. Bakis

arxiv:0807.3820 v1 · 2008-07-24 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{GDXTM6NB4QC4ZKBIMPZ5VWNRDX}

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	2026-07-04T17:11:57.646526Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

30ef3679a1e405cca82863f3dad9b11dfcf1957d7b9dc7a8ab460cc897dc8cac

Aliases

arxiv: 0807.3820 · arxiv_version: 0807.3820v1 · doi: 10.48550/arxiv.0807.3820 · pith_short_12: GDXTM6NB4QC4 · pith_short_16: GDXTM6NB4QC4ZKBI · pith_short_8: GDXTM6NB

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/GDXTM6NB4QC4ZKBIMPZ5VWNRDX \
  | 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: 30ef3679a1e405cca82863f3dad9b11dfcf1957d7b9dc7a8ab460cc897dc8cac

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9d506e89bf8201d8ebe9cc6e0dd0a190784ee9454c70db00ec480ae519c69ff8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-07-24T08:39:54Z",
    "title_canon_sha256": "8f78bb7c21bb0f461ff1ae93907cc1262ceaf7c35f51f84c48310e54451264a9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0807.3820",
    "kind": "arxiv",
    "version": 1
  }
}