Pith Number

pith:MFOKHPTB

pith:2021:MFOKHPTBVKDX7EGP6ONIRLHHCR

not attested not anchored not stored refs pending

PENELLOPE II. CVSO 104: a pre-main sequence close binary with an optical companion in Ori OB1

A. Frasca, \'A. K\'osp\'al, C. F. Manara, E. Alecian, E. Covino, F. M. Walter, G. J. Herczeg, H. M. J. Boffin, J. ALonso-Santiago, J. M. Alcal\'a, K. Grankin, L. Venuti, M. Fang, M. Gangi, M. Siwak, P. \'Abrah\'am, S. Cabrit

arxiv:2109.06305 v1 · 2021-09-13 · 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{MFOKHPTBVKDX7EGP6ONIRLHHCR}

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	2026-07-05T03:40:45.530022Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

615ca3be61aa877f90cff39a88ace7147d911705b7932233873c5722e34242d3

Aliases

arxiv: 2109.06305 · arxiv_version: 2109.06305v1 · doi: 10.48550/arxiv.2109.06305 · pith_short_12: MFOKHPTBVKDX · pith_short_16: MFOKHPTBVKDX7EGP · pith_short_8: MFOKHPTB

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/MFOKHPTBVKDX7EGP6ONIRLHHCR \
  | 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: 615ca3be61aa877f90cff39a88ace7147d911705b7932233873c5722e34242d3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "912bc2bfdf69babaae52f0b5c2f66fd0b6aeae1841c3ced3504aea1d335cc0a1",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2021-09-13T20:32:11Z",
    "title_canon_sha256": "6b5a583d53cf505df800c9a576cc53643ee600cfd662907207f3e3ed14796d3a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2109.06305",
    "kind": "arxiv",
    "version": 1
  }
}