Pith Number

pith:JWDF36X7

pith:2020:JWDF36X7BX24I6WAVI3MZOG57S

not attested not anchored not stored refs pending

Direct evidence of weakly dispersed and strongly anharmonic optical phonons in hybrid perovskites

A.C. Ferreira, A. L\'etoublon, B. Hehlen, B. Ruffl\'e, C. Katan, J. Even, J. Ollivier, P. Bourges, S. Cordier, S. Paofai, S. Raymond

arxiv:2001.05445 v2 · 2020-01-15 · cond-mat.mtrl-sci · 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{JWDF36X7BX24I6WAVI3MZOG57S}

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	2026-07-05T01:08:11.485788Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4d865dfaff0df5c47ac0aa36ccb8ddfcb7fe94e94dfe6e3e255b01a4b1343ccf

Aliases

arxiv: 2001.05445 · arxiv_version: 2001.05445v2 · doi: 10.48550/arxiv.2001.05445 · pith_short_12: JWDF36X7BX24 · pith_short_16: JWDF36X7BX24I6WA · pith_short_8: JWDF36X7

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/JWDF36X7BX24I6WAVI3MZOG57S \
  | 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: 4d865dfaff0df5c47ac0aa36ccb8ddfcb7fe94e94dfe6e3e255b01a4b1343ccf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f3a978f266ef5b2bcf253c2a381eb292f099708647c8eeae932842e9a34b41b8",
    "cross_cats_sorted": [
      "cond-mat.other"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.mtrl-sci",
    "submitted_at": "2020-01-15T17:38:02Z",
    "title_canon_sha256": "3798755ecfdf3b8c09e45b7d5328541d7d0b44f16bdba3edd2d9fa064a41429c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2001.05445",
    "kind": "arxiv",
    "version": 2
  }
}