Pith Number

pith:4S3O4ATI

pith:2019:4S3O4ATIDCU2WJX3M3DVIOUPDR

not attested not anchored not stored refs pending

Methods to simplify cooling of liquid Helium cryostats

Hermann Suderow, Isabel Guillamon, Jose Castilla, Jose Navarrete, Juan Ramon Marijuan, Nuria Diaz Contreras, Rafael Alvarez Montoya, Sara Delgado, Victor Barrena

arxiv:1901.06556 v1 · 2019-01-19 · physics.ins-det

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4S3O4ATIDCU2WJX3M3DVIOUPDR}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-17T23:48:04.622088Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e4b6ee026818a9ab26fb66c7543a8f1c7784fba55b19cbce625d1353f81efdec

Aliases

arxiv: 1901.06556 · arxiv_version: 1901.06556v1 · doi: 10.48550/arxiv.1901.06556 · pith_short_12: 4S3O4ATIDCU2 · pith_short_16: 4S3O4ATIDCU2WJX3 · pith_short_8: 4S3O4ATI

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/4S3O4ATIDCU2WJX3M3DVIOUPDR \
  | 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: e4b6ee026818a9ab26fb66c7543a8f1c7784fba55b19cbce625d1353f81efdec

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "80b1beab4bc89449e6f37a0c0fa6f4f1436db7b1e9af781bc377b8456df66315",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.ins-det",
    "submitted_at": "2019-01-19T16:57:22Z",
    "title_canon_sha256": "8772483ccf87a502af456555a661c8b7e91f39aae53152fddb6ab9bcc62f82d7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.06556",
    "kind": "arxiv",
    "version": 1
  }
}