Pith Number

pith:75GRWCGN

pith:2019:75GRWCGNEPTQFPKOL4OOT6SQG3

not attested not anchored not stored refs pending

The detached, evolved post-mass-exchange binary V643 Orionis

2), (2) Stellar Astrophysics Centre, (3) Center for Astrophysics | Harvard & Smithsonian, Aarhus University, Astronomy, Denmark, Department of Physics, Guillermo Torres (3), Jens Viggo Clausen (1) ((1) The Niels Bohr Institute, Johannes Andersen (1, University of Copenhagen, USA)

arxiv:1903.06711 v2 · 2019-03-15 · 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{75GRWCGNEPTQFPKOL4OOT6SQG3}

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	2026-05-17T23:48:23.236343Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ff4d1b08cd23e702bd4e5f1ce9fa5036d9ac1627495e79f6cfc82e799260aff5

Aliases

arxiv: 1903.06711 · arxiv_version: 1903.06711v2 · doi: 10.48550/arxiv.1903.06711 · pith_short_12: 75GRWCGNEPTQ · pith_short_16: 75GRWCGNEPTQFPKO · pith_short_8: 75GRWCGN

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/75GRWCGNEPTQFPKOL4OOT6SQG3 \
  | 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: ff4d1b08cd23e702bd4e5f1ce9fa5036d9ac1627495e79f6cfc82e799260aff5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bad74cba6d05640d5375c098a76502f3f35212d7688fc3f608e017b6ca5b3b50",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2019-03-15T18:00:00Z",
    "title_canon_sha256": "b53110318599d96f0f479fcf96f0b464224d3e0612192792ed1af4ad7faebaec"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.06711",
    "kind": "arxiv",
    "version": 2
  }
}