Pith Number

pith:MTGAL4NV

pith:2017:MTGAL4NVRVL3IYYAU5WVEUGZ2N

not attested not anchored not stored refs pending

Evidence for abnormal H$\alpha$ variability during near-transit observations of HD 189733 b

Adam G. Jensen, P. Wilson Cauley, Seth Redfield

arxiv:1703.02562 v1 · 2017-03-07 · 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{MTGAL4NVRVL3IYYAU5WVEUGZ2N}

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	2026-05-18T00:47:19.643573Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

64cc05f1b58d57b46300a76d5250d9d3730299e79dd09005f2f6a438cc45d40f

Aliases

arxiv: 1703.02562 · arxiv_version: 1703.02562v1 · doi: 10.48550/arxiv.1703.02562 · pith_short_12: MTGAL4NVRVL3 · pith_short_16: MTGAL4NVRVL3IYYA · pith_short_8: MTGAL4NV

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/MTGAL4NVRVL3IYYAU5WVEUGZ2N \
  | 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: 64cc05f1b58d57b46300a76d5250d9d3730299e79dd09005f2f6a438cc45d40f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "47dab4dca61a61e8ec405728e011c08dbd66fdf63b0e21c64bc208a34d5ed5a1",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2017-03-07T19:21:53Z",
    "title_canon_sha256": "cc33d68234c5e8e45b3bcbb8bf92ec835673a9723c0b2bc9d7a44fd60c22a48b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1703.02562",
    "kind": "arxiv",
    "version": 1
  }
}