Pith Number

pith:4WWDNQNX

pith:2009:4WWDNQNXXVYCXTXC2CI2MGV3AJ

not attested not anchored not stored refs pending

Studies of superconductivity and structure for CaC6 to pressures above 15 GPa

D. G. Hinks, D. Rosenmann, H. Claus, J. J. Hamlin, J. S. Schilling, M. Debessai, Y. Meng

arxiv:0904.3138 v1 · 2009-04-20 · cond-mat.supr-con

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4WWDNQNXXVYCXTXC2CI2MGV3AJ}

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	2026-05-18T02:13:58.713925Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e5ac36c1b7bd702bcee2d091a61abb0257f406b6d06f012d05dd9ba19bb9cff2

Aliases

arxiv: 0904.3138 · arxiv_version: 0904.3138v1 · doi: 10.48550/arxiv.0904.3138 · pith_short_12: 4WWDNQNXXVYC · pith_short_16: 4WWDNQNXXVYCXTXC · pith_short_8: 4WWDNQNX

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/4WWDNQNXXVYCXTXC2CI2MGV3AJ \
  | 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: e5ac36c1b7bd702bcee2d091a61abb0257f406b6d06f012d05dd9ba19bb9cff2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f9657bfbf7699eb081ab15cbfe4e158814edf7a9ff0ac219498ed4fda9dfe42a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.supr-con",
    "submitted_at": "2009-04-20T23:27:25Z",
    "title_canon_sha256": "baf61e159405bac64a1776906fff0098dcc3a4683aa8a1b02c9f71ef636363ba"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0904.3138",
    "kind": "arxiv",
    "version": 1
  }
}