Pith Number

pith:TA2OGQ54

pith:2013:TA2OGQ545AFBSPUHVX4TQGDHID

not attested not anchored not stored refs pending

How cold can you get in space? Quantum Physics at cryogenic temperatures in space

Fabian Hufgard, Gerald Hechenblaikner, Johannes Burkhardt, Markus Aspelmeyer, Nikolai Kiesel, Rainer Kaltenbaek, Ulrich Johann

arxiv:1309.3234 v2 · 2013-09-12 · quant-ph · astro-ph.IM · gr-qc · physics.ins-det · physics.space-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{TA2OGQ545AFBSPUHVX4TQGDHID}

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	2026-05-18T02:52:58.351166Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9834e343bce80a193e87adf938186740e61f8aea4d714c38baabea82cd38425b

Aliases

arxiv: 1309.3234 · arxiv_version: 1309.3234v2 · doi: 10.48550/arxiv.1309.3234 · pith_short_12: TA2OGQ545AFB · pith_short_16: TA2OGQ545AFBSPUH · pith_short_8: TA2OGQ54

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/TA2OGQ545AFBSPUHVX4TQGDHID \
  | 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: 9834e343bce80a193e87adf938186740e61f8aea4d714c38baabea82cd38425b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "18d23263278d38131580aa4b4da7cf3cabf3934e0549e404d51554b8f2b8a7f2",
    "cross_cats_sorted": [
      "astro-ph.IM",
      "gr-qc",
      "physics.ins-det",
      "physics.space-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2013-09-12T18:25:14Z",
    "title_canon_sha256": "c80ac9ac5ece59cf493813baf61ed0513cd3a5daac260d71e7ab01569a007570"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1309.3234",
    "kind": "arxiv",
    "version": 2
  }
}