Pith Number

pith:R5PQR43Q

pith:2019:R5PQR43QHPOLVNYLAWHH4IB6PU

not attested not anchored not stored refs pending

Observation of second sound in graphite at temperatures above 100 K

Alexei A. Maznev, Bai Song, Gang Chen, Ke Chen, Keith A. Nelson, Ryan A. Duncan, Samuel Huberman, Vazrik Chiloyan, Zhiwei Ding

arxiv:1901.09160 v1 · 2019-01-26 · cond-mat.mes-hall

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{R5PQR43QHPOLVNYLAWHH4IB6PU}

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	2026-05-17T23:43:03.669595Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8f5f08f3703bdcbab70b058e7e203e7d32f5325bb4eebfc5ff56bd41d9e8b84c

Aliases

arxiv: 1901.09160 · arxiv_version: 1901.09160v1 · doi: 10.48550/arxiv.1901.09160 · pith_short_12: R5PQR43QHPOL · pith_short_16: R5PQR43QHPOLVNYL · pith_short_8: R5PQR43Q

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/R5PQR43QHPOLVNYLAWHH4IB6PU \
  | 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: 8f5f08f3703bdcbab70b058e7e203e7d32f5325bb4eebfc5ff56bd41d9e8b84c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c4cf9ee215db746e791a687d53185230cc93b736df326d03d0c39b277dfb2807",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.mes-hall",
    "submitted_at": "2019-01-26T04:44:38Z",
    "title_canon_sha256": "42ac4238c47cb84de6dbfce7e1dafd6ce3234292de5b6c74b84f76ab71f90c1d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.09160",
    "kind": "arxiv",
    "version": 1
  }
}