Pith Number

pith:DPYI3IUX

pith:2013:DPYI3IUXHGB7RVVQRCQBKISQTG

not attested not anchored not stored refs pending

Graphene physics and insulator-metal transition in compressed hydrogen

Ivan I. Naumov, R. E. Cohen, Russell J. Hemley

arxiv:1305.4649 v1 · 2013-05-20 · 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{DPYI3IUXHGB7RVVQRCQBKISQTG}

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	2026-05-18T03:25:15.537892Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1bf08da2973983f8d6b088a0152250999b1881a5bf6a65e32d94283b58315c96

Aliases

arxiv: 1305.4649 · arxiv_version: 1305.4649v1 · doi: 10.48550/arxiv.1305.4649 · pith_short_12: DPYI3IUXHGB7 · pith_short_16: DPYI3IUXHGB7RVVQ · pith_short_8: DPYI3IUX

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/DPYI3IUXHGB7RVVQRCQBKISQTG \
  | 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: 1bf08da2973983f8d6b088a0152250999b1881a5bf6a65e32d94283b58315c96

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "484a6e855ad810076ac7b248f0bdf031fbfe297eb360232052593acab7b37bc7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.mtrl-sci",
    "submitted_at": "2013-05-20T20:31:17Z",
    "title_canon_sha256": "759c6dd292a2d62e49096f4a0e344c77c91085f476b953c8b511aad00908f96d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1305.4649",
    "kind": "arxiv",
    "version": 1
  }
}