Pith Number

pith:MHY4XDNS

pith:2009:MHY4XDNSHLKBLQWJ43JX6KOKRS

not attested not anchored not stored refs pending

A multi-photon magneto-optical trap

J. V. Porto, Roger Brown, Saijun Wu, Thomas Plisson, William D. Phillips

arxiv:0909.1949 v1 · 2009-09-10 · 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{MHY4XDNSHLKBLQWJ43JX6KOKRS}

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	2026-05-18T03:39:17.021269Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

61f1cb8db23ad415c2c9e6d37f29ca8c822ce1df695d2211d20142338523e54b

Aliases

arxiv: 0909.1949 · arxiv_version: 0909.1949v1 · doi: 10.48550/arxiv.0909.1949 · pith_short_12: MHY4XDNSHLKB · pith_short_16: MHY4XDNSHLKBLQWJ · pith_short_8: MHY4XDNS

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/MHY4XDNSHLKBLQWJ43JX6KOKRS \
  | 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: 61f1cb8db23ad415c2c9e6d37f29ca8c822ce1df695d2211d20142338523e54b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cdb1be2520df502efad5555ad2b0a64a2c58039ae2e7dd805c2ff0d93f8a3c18",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.atom-ph",
    "submitted_at": "2009-09-10T13:52:02Z",
    "title_canon_sha256": "385e7b85560f910ea839a3a9c7529c0c82c401b49b0223eaff66ab8fd8289ad1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0909.1949",
    "kind": "arxiv",
    "version": 1
  }
}