Pith Number

pith:DEFFL4AT

pith:2019:DEFFL4ATE63SGLWLOT7JKDNPSV

not attested not anchored not stored refs pending

Superconductivity in sodalite-like yttrium hydride clathrates

(2) Dipartimento di Fisica, Austria, Christoph Heil (1), Giovanni B. Bachelet (2), Graz University of Technology, Italy, Lilia Boeri (2) (1) ITP-CP, Sapienza Universita' di Roma, Simone di Cataldo (1)

arxiv:1901.04001 v1 · 2019-01-13 · cond-mat.supr-con · cond-mat.mtrl-sci

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DEFFL4ATE63SGLWLOT7JKDNPSV}

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	2026-05-17T23:43:03.795060Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

190a55f01327b7232ecb74fe950daf9562a138864290cc120593eb200da6ec1c

Aliases

arxiv: 1901.04001 · arxiv_version: 1901.04001v1 · doi: 10.48550/arxiv.1901.04001 · pith_short_12: DEFFL4ATE63S · pith_short_16: DEFFL4ATE63SGLWL · pith_short_8: DEFFL4AT

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/DEFFL4ATE63SGLWLOT7JKDNPSV \
  | 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: 190a55f01327b7232ecb74fe950daf9562a138864290cc120593eb200da6ec1c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7013f1d1945852f1434f0f176590e0f1371d055cd00b0e57242be0fe2ecad0e6",
    "cross_cats_sorted": [
      "cond-mat.mtrl-sci"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.supr-con",
    "submitted_at": "2019-01-13T15:27:33Z",
    "title_canon_sha256": "40e956223ee0884c71d17715bc48fbe4708d0eac8bc0b5ce8da0db6e91058223"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.04001",
    "kind": "arxiv",
    "version": 1
  }
}