Pith Number

pith:EIDPEF7Q

pith:2014:EIDPEF7QCKW34HV7FR7KDAS5JC

not attested not anchored not stored refs pending

The NASA-UC-UH Eta-Earth Program: IV. A Low-mass Planet Orbiting an M Dwarf 3.6 PC from Earth

Andrew W. Howard, Debra A. Fischer, Geoffrey W. Marcy, Gregory W. Henry, Howard Isaacson, Jason T. Wright, John Asher Johnson, Juliette C. Becker, Kaspar von Braun, Philip S. Muirhead, Tabetha S. Boyajian

arxiv:1408.5645 v1 · 2014-08-25 · astro-ph.EP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EIDPEF7QCKW34HV7FR7KDAS5JC}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T01:42:13.469589Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2206f217f012adbe1ebf2c7ea1825d48bf0832f5ad5825047756743ac4cabf24

Aliases

arxiv: 1408.5645 · arxiv_version: 1408.5645v1 · doi: 10.48550/arxiv.1408.5645 · pith_short_12: EIDPEF7QCKW3 · pith_short_16: EIDPEF7QCKW34HV7 · pith_short_8: EIDPEF7Q

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/EIDPEF7QCKW34HV7FR7KDAS5JC \
  | 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: 2206f217f012adbe1ebf2c7ea1825d48bf0832f5ad5825047756743ac4cabf24

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f0eb722b2bcc6ddae2be82c60cc7ea0b748941696c9e59fb1d0ae161d07bd51f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2014-08-25T00:31:16Z",
    "title_canon_sha256": "9def9ddc9431f62256d05a2adc712ef2bca1d72188a27829c610eb13c2567fd5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1408.5645",
    "kind": "arxiv",
    "version": 1
  }
}