Pith Number

pith:URZI4QUB

pith:2017:URZI4QUBW6DJH6IGACIDXSNO4E

not attested not anchored not stored refs pending

Orbital Characteristics of the Subdwarf-B and F V Star Binary EC~20117-4014(=V4640 Sgr)

A. E. Lynas-Gray, D. Kilkenny, K. Koen, M. Amaral, R. Jordan, T. Oswalt, T. Otani

arxiv:1708.06029 v2 · 2017-08-20 · 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{URZI4QUBW6DJH6IGACIDXSNO4E}

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	2026-05-18T00:13:32.200779Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a4728e4281b78693f90600903bc9aee1336516bd04292b4f4e02bd85cf6ddbac

Aliases

arxiv: 1708.06029 · arxiv_version: 1708.06029v2 · doi: 10.48550/arxiv.1708.06029 · pith_short_12: URZI4QUBW6DJ · pith_short_16: URZI4QUBW6DJH6IG · pith_short_8: URZI4QUB

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/URZI4QUBW6DJH6IGACIDXSNO4E \
  | 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: a4728e4281b78693f90600903bc9aee1336516bd04292b4f4e02bd85cf6ddbac

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7046c9cff0ff96b1fb43c91822816690b79f861e3e590a33e2e491005e6d9e46",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2017-08-20T22:35:00Z",
    "title_canon_sha256": "d79913c55a05d6d7cde76fc192249bcf8927acdf393e3e5cf4d85a91d8f24af1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1708.06029",
    "kind": "arxiv",
    "version": 2
  }
}