Pith Number

pith:AUA2QNNG

pith:2017:AUA2QNNGP5XVPFCSNJH2Z4SQDJ

not attested not anchored not stored refs pending

Updated Masses for the TRAPPIST-1 Planets

Dong-Hong Wu, Gregory P. Laughlin, Songhu Wang, Thomas Barclay

arxiv:1704.04290 v1 · 2017-04-13 · 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{AUA2QNNGP5XVPFCSNJH2Z4SQDJ}

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	2026-05-18T00:46:21.966174Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0501a835a67f6f5794526a4facf2501a6bd0e9419f3e4bb11d72920f7aaf375b

Aliases

arxiv: 1704.04290 · arxiv_version: 1704.04290v1 · doi: 10.48550/arxiv.1704.04290 · pith_short_12: AUA2QNNGP5XV · pith_short_16: AUA2QNNGP5XVPFCS · pith_short_8: AUA2QNNG

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/AUA2QNNGP5XVPFCSNJH2Z4SQDJ \
  | 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: 0501a835a67f6f5794526a4facf2501a6bd0e9419f3e4bb11d72920f7aaf375b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "43beea80075f9c3eee1175951142ed727dc0b60e232b8aa5aee8178829815a29",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2017-04-13T22:19:18Z",
    "title_canon_sha256": "57aa41b6ee334beee1c57616c33581e65e4f3a618fa296d44e40ba4960a0b013"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1704.04290",
    "kind": "arxiv",
    "version": 1
  }
}