Pith Number

pith:JX6MP2IE

pith:2014:JX6MP2IEM7AAQFX7O44KKKI6HM

not attested not anchored not stored refs pending

Determining the minimum mass and cost of a magnetic refrigerator

A. Smith, C. R. H. Bahl, N. Pryds, R. Bj{\o}rk

arxiv:1410.6248 v1 · 2014-10-23 · physics.ins-det

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{JX6MP2IEM7AAQFX7O44KKKI6HM}

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	2026-05-18T02:39:31.268253Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4dfcc7e90467c00816ff7738a5291e3b363f66cdcdb7c55a17729cc91afc4278

Aliases

arxiv: 1410.6248 · arxiv_version: 1410.6248v1 · doi: 10.48550/arxiv.1410.6248 · pith_short_12: JX6MP2IEM7AA · pith_short_16: JX6MP2IEM7AAQFX7 · pith_short_8: JX6MP2IE

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/JX6MP2IEM7AAQFX7O44KKKI6HM \
  | 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: 4dfcc7e90467c00816ff7738a5291e3b363f66cdcdb7c55a17729cc91afc4278

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "21c78a67ccc8a69eece88e16b01abea35115928fda56c0aae3fa2886059037c2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.ins-det",
    "submitted_at": "2014-10-23T05:22:14Z",
    "title_canon_sha256": "72b8ab7f6e09156b627cf87a3d3af9d771e92d2969517a8be7bc3850b36558ad"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1410.6248",
    "kind": "arxiv",
    "version": 1
  }
}