Pith Number

pith:CUC5X7DA

pith:2012:CUC5X7DAXPGCZFEVFQVPEO3KKS

not attested not anchored not stored refs pending

Has Metallic Hydrogen Been Made in a Diamond Anvil Cell?

Arthur L. Ruoff, Isaac F. Silvera, W.J. Nellis

arxiv:1201.0407 v1 · 2012-01-02 · cond-mat.other

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CUC5X7DAXPGCZFEVFQVPEO3KKS}

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.

Cited by

1 paper in Pith

Comment on: Observation of a first order phase transition to metal hydrogen near 425 GPa

Receipt and verification

First computed	2026-05-18T04:05:17.615277Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1505dbfc60bbcc2c94952c2af23b6a5496d8726dc67718dc7d11c4e69d75db5a

Aliases

arxiv: 1201.0407 · arxiv_version: 1201.0407v1 · doi: 10.48550/arxiv.1201.0407 · pith_short_12: CUC5X7DAXPGC · pith_short_16: CUC5X7DAXPGCZFEV · pith_short_8: CUC5X7DA

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/CUC5X7DAXPGCZFEVFQVPEO3KKS \
  | 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: 1505dbfc60bbcc2c94952c2af23b6a5496d8726dc67718dc7d11c4e69d75db5a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3689ecf5b5523a40b13d5d963be66b87960d29e47c9d70b6283f3c5eafee6432",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.other",
    "submitted_at": "2012-01-02T01:19:17Z",
    "title_canon_sha256": "dff60db99cc856e19e6b0e6ee2ec78363d404bf3c292cc65844b18451bae7d20"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1201.0407",
    "kind": "arxiv",
    "version": 1
  }
}