Pith Number

pith:2RJJ4V77

pith:2013:2RJJ4V77ZMJ62GIQDP6HMQBGQY

not attested not anchored not stored refs pending

The importance of non-photon noise in stellar spectropolarimetry. The spurious detection of a non-existing magnetic field in the A0 supergiant HD 92207

John D. Landstreet, Luca Fossati, Oleg Kochukhov, Stefano Bagnulo

arxiv:1309.2158 v2 · 2013-09-09 · astro-ph.IM · 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{2RJJ4V77ZMJ62GIQDP6HMQBGQY}

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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.

Receipt and verification

First computed	2026-05-18T01:47:44.293416Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d4529e57ffcb13ed19101bfc76402686034cfd01c86cd0195cb0aba6ebb33003

Aliases

arxiv: 1309.2158 · arxiv_version: 1309.2158v2 · doi: 10.48550/arxiv.1309.2158 · pith_short_12: 2RJJ4V77ZMJ6 · pith_short_16: 2RJJ4V77ZMJ62GIQ · pith_short_8: 2RJJ4V77

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/2RJJ4V77ZMJ62GIQDP6HMQBGQY \
  | 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: d4529e57ffcb13ed19101bfc76402686034cfd01c86cd0195cb0aba6ebb33003

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "55127513638c34abe5f15f93aacacf227474e60c3ca9a5f335f84755a167eea2",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2013-09-09T13:50:17Z",
    "title_canon_sha256": "a7b51f438feef3bcd0db9b02cbb2e3ad493f610b0cac9eaae9e8c07b4dbae397"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1309.2158",
    "kind": "arxiv",
    "version": 2
  }
}