Pith Number

pith:IAPTV7QW

pith:2005:IAPTV7QWZADIMXN53TZ4D3YU74

not attested not anchored not stored refs pending

Ground Control to Niels Bohr: Exploring Outer Space with Atomic Physics

Mason A. Porter, Predrag Cvitanovic

arxiv:physics/0505085 v1 · 2005-05-11 · physics.pop-ph · math.DS · nlin.CD · physics.atom-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{IAPTV7QWZADIMXN53TZ4D3YU74}

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	2026-07-04T14:44:39.267030Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

401f3afe16c806865dbddcf3c1ef14ff35145802cdcc949b8384f884f8ac8a15

Aliases

arxiv: physics/0505085 · arxiv_version: physics/0505085v1 · doi: 10.48550/arxiv.physics/0505085 · pith_short_12: IAPTV7QWZADI · pith_short_16: IAPTV7QWZADIMXN5 · pith_short_8: IAPTV7QW

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/IAPTV7QWZADIMXN53TZ4D3YU74 \
  | 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: 401f3afe16c806865dbddcf3c1ef14ff35145802cdcc949b8384f884f8ac8a15

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "549c848934182a9ffe98a34ec7a974d4bb9d9f17819888b40c64eda0c63744bd",
    "cross_cats_sorted": [
      "math.DS",
      "nlin.CD",
      "physics.atom-ph"
    ],
    "license": "",
    "primary_cat": "physics.pop-ph",
    "submitted_at": "2005-05-11T19:11:27Z",
    "title_canon_sha256": "db9c99c664594925a3c538213eba1c43e09c45a79f0b41159b7029d2394b7e2d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "physics/0505085",
    "kind": "arxiv",
    "version": 1
  }
}