Pith Number

pith:YPJZREUF

pith:2014:YPJZREUFAL2A45WW32IC3MS2C3

not attested not anchored not stored refs pending

Improvements on analytic modelling of stellar spots

2), 2) ((1) Centro de Astrof\'isica da Universidade do Porto (CAUP), (2) Departamento de F\'isica e Astronomia, (3) University of Chicago, (4) Aix Marseille University), Faculdade de Ciencias, G. Bou\'e (3), G. Bruno (4), I. Boisse (4), M. Montalto (1), M. Oshagh (1, N. C. Santos (1, Universidade do Porto

arxiv:1407.2155 v1 · 2014-07-08 · astro-ph.EP · 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{YPJZREUFAL2A45WW32IC3MS2C3}

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	2026-05-18T01:42:40.848766Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c3d398928502f40e76d6de902db25a16d7553f9071aec834cb202aef11b27f91

Aliases

arxiv: 1407.2155 · arxiv_version: 1407.2155v1 · doi: 10.48550/arxiv.1407.2155 · pith_short_12: YPJZREUFAL2A · pith_short_16: YPJZREUFAL2A45WW · pith_short_8: YPJZREUF

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/YPJZREUFAL2A45WW32IC3MS2C3 \
  | 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: c3d398928502f40e76d6de902db25a16d7553f9071aec834cb202aef11b27f91

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "941d1562754d911a09edd0f49a89a4aa468a7a63d7f05e97be92a1de5ba509da",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2014-07-08T16:10:12Z",
    "title_canon_sha256": "194d05e4e41d70e92774457630f6d9838d5e385c3dae6edce4d0327cb6c2f688"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1407.2155",
    "kind": "arxiv",
    "version": 1
  }
}