Pith Number

pith:6LTKBJ2R

pith:2015:6LTKBJ2RDYTBQCWLRLJ4IZJY6G

not attested not anchored not stored refs pending

A First-order Phase Transition to Metallic Hydrogen

Ashkan Salamat, Isaac F. Silvera, Mohamed Zaghoo

arxiv:1504.00259 v1 · 2015-04-01 · 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{6LTKBJ2RDYTBQCWLRLJ4IZJY6G}

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	2026-05-18T01:16:50.996302Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f2e6a0a7511e26180acb8ad3c46538f18489f542247d2e162ad17b5d9a3e9ec4

Aliases

arxiv: 1504.00259 · arxiv_version: 1504.00259v1 · doi: 10.48550/arxiv.1504.00259 · pith_short_12: 6LTKBJ2RDYTB · pith_short_16: 6LTKBJ2RDYTBQCWL · pith_short_8: 6LTKBJ2R

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/6LTKBJ2RDYTBQCWLRLJ4IZJY6G \
  | 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: f2e6a0a7511e26180acb8ad3c46538f18489f542247d2e162ad17b5d9a3e9ec4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ed0e62a00386ac472d9d171e213f53983a56d4dd0c98f048cd322efe14967402",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.mtrl-sci",
    "submitted_at": "2015-04-01T15:10:06Z",
    "title_canon_sha256": "dfd7c6aeb1e090b14e19ed0fe42d96669bba1cb2a8b6e3bb3d27f1b9425f92b7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.00259",
    "kind": "arxiv",
    "version": 1
  }
}