Pith Number

pith:7JJ6TP77

pith:2019:7JJ6TP77OSLOADNQRSKZKNLYCQ

not attested not anchored not stored refs pending

Tides between the TRAPPIST-1 planets

Hamish Hay, Isamu Matsuyama

arxiv:1903.04501 v1 · 2019-03-11 · 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{7JJ6TP77OSLOADNQRSKZKNLYCQ}

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	2026-05-17T23:48:29.893176Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fa53e9bfff7496e00db08c95953578141a0441e14c4bf0760c92c9190b186787

Aliases

arxiv: 1903.04501 · arxiv_version: 1903.04501v1 · doi: 10.48550/arxiv.1903.04501 · pith_short_12: 7JJ6TP77OSLO · pith_short_16: 7JJ6TP77OSLOADNQ · pith_short_8: 7JJ6TP77

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/7JJ6TP77OSLOADNQRSKZKNLYCQ \
  | 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: fa53e9bfff7496e00db08c95953578141a0441e14c4bf0760c92c9190b186787

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "42ea8e89e6b33f87f6357673ca459fdea84017e82779a1234f65f91e9815a329",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2019-03-11T18:00:02Z",
    "title_canon_sha256": "4d341aa9ada1a5c6d7c9cee4fb5905744a4396785dc6023b94d86f0dba3d4735"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.04501",
    "kind": "arxiv",
    "version": 1
  }
}