Pith Number

pith:QPDAE6CI

pith:2021:QPDAE6CI7GM2MFOKQ63DTFF7M2

not attested not anchored not stored refs pending

Determining the Twist Angle of Bilayer Graphene by Machine Learning Analysis of its Raman Spectrum

Hiroki Ago, Pablo Sol\'is-Fern\'andez

arxiv:2110.04115 v2 · 2021-10-08 · cond-mat.mtrl-sci · cond-mat.mes-hall · physics.data-an

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QPDAE6CI7GM2MFOKQ63DTFF7M2}

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	2026-07-05T04:39:47.877989Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

83c6027848f999a615ca87b63994bf66be0d32020091c26a5bb5fd60302e0d9e

Aliases

arxiv: 2110.04115 · arxiv_version: 2110.04115v2 · doi: 10.48550/arxiv.2110.04115 · pith_short_12: QPDAE6CI7GM2 · pith_short_16: QPDAE6CI7GM2MFOK · pith_short_8: QPDAE6CI

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/QPDAE6CI7GM2MFOKQ63DTFF7M2 \
  | 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: 83c6027848f999a615ca87b63994bf66be0d32020091c26a5bb5fd60302e0d9e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "844d8f087d027bba6940177c6fa901530ee1f4cb8ba976f79ee096179e952c5b",
    "cross_cats_sorted": [
      "cond-mat.mes-hall",
      "physics.data-an"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.mtrl-sci",
    "submitted_at": "2021-10-08T13:24:28Z",
    "title_canon_sha256": "71d5f99ff8b43ac2e5fffcf11cbed125e79595235bc13fbb04e4e5bf8cb5bee0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2110.04115",
    "kind": "arxiv",
    "version": 2
  }
}