Pith Number

pith:4HO2F7OV

pith:2018:4HO2F7OVB3TKR7GEYEXRYPBU2T

not attested not anchored not stored refs pending

Stellar activity analysis of Barnard's Star: Very slow rotation and evidence for long-term activity cycle

A. Quirrenbach, A. Reiners, A. Sota, A. Su\'arez Mascare\~no, B. Harris, B. Holden, B. Toledo-Padr\'on, C. Kotnik, C. Rodr\'iguez-L\'opez, D. Montes, D. Rodr\'iguez, E. D\'iez Alonso, E. F. Guinan, E. Herrero, E. N. Johnson, E. Pall\'e, E. Rodr\'iguez, F. Dubois, F. J. Aceituno, F. -J. Hambsch, F. Murgas, F. S. Urquijo, G. Anglada-Escud\'e, I. Cervini, I. Ribas, J. A. Caballero, J. Aceituno, J. B. P. Strachan, J. Briol, J. Burt, J. C. Morales, J. Crane, J. I. Gonz\'alez Hern\'andez, J. Lopez, J. L. Ortiz, J. Teske, L. Barbieri, L. Logie, L. P\'erez, M. Deldem, M. D\'iaz, M. J. L\'opez-Gonz\'alez, M. Kiraga, M. McNeely, M. Perger, M. Tuomi, N. Morales, P. Arriagada, P. J. Amado, R. P. Butler, R. Rebolo, S. G. Engle, S. Mart\'in-Ruiz, S. Rau, S. Shectman, S. Vanaverbeke, S. V. Jeffers, S. Vogt, V. J. S. B\'ejar, V. M. Casanova, Y. Ogmen

arxiv:1812.06712 v3 · 2018-12-17 · astro-ph.SR · astro-ph.EP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4HO2F7OVB3TKR7GEYEXRYPBU2T}

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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.

Cited by

1 paper in Pith

Unstable magnetospheric accretion on the T Tauri star TW Hya

Receipt and verification

First computed	2026-07-04T23:51:38.183506Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e1dda2fdd50ee6a8fcc4c12f1c3c34d4c55cf47887f06eb3c7950e3dcfd9a954

Aliases

arxiv: 1812.06712 · arxiv_version: 1812.06712v3 · doi: 10.48550/arxiv.1812.06712 · pith_short_12: 4HO2F7OVB3TK · pith_short_16: 4HO2F7OVB3TKR7GE · pith_short_8: 4HO2F7OV

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/4HO2F7OVB3TKR7GEYEXRYPBU2T \
  | 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: e1dda2fdd50ee6a8fcc4c12f1c3c34d4c55cf47887f06eb3c7950e3dcfd9a954

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6cfeba7a9e31bcd55b54c4111b790dd1035c3b08561be99cabf08af7035f1f0a",
    "cross_cats_sorted": [
      "astro-ph.EP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2018-12-17T11:36:31Z",
    "title_canon_sha256": "f8e1cd9c95accacb43a26f77cd7f30aaf92d44455b91ed20a2477c92ad9fb88b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1812.06712",
    "kind": "arxiv",
    "version": 3
  }
}