Pith Number

pith:7CMKMX6T

pith:2011:7CMKMX6TDYJJD5Q42XVRKFGER6

not attested not anchored not stored refs pending

Spin-half paramagnetism in graphene induced by point defects

A. K. Geim, A. V. Krasheninnikov, I-Ling Tsai, I. V. Grigorieva, J. Keinonen, M. Sepioni, O. Lehtinen, R. R. Nair, T. Thomson

arxiv:1111.3775 v2 · 2011-11-16 · cond-mat.mes-hall · 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{7CMKMX6TDYJJD5Q42XVRKFGER6}

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	2026-05-18T03:55:12.208812Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f898a65fd31e1291f61cd5eb1514c48fb50cacfc63a84b75cc08cfad8104d531

Aliases

arxiv: 1111.3775 · arxiv_version: 1111.3775v2 · doi: 10.48550/arxiv.1111.3775 · pith_short_12: 7CMKMX6TDYJJ · pith_short_16: 7CMKMX6TDYJJD5Q4 · pith_short_8: 7CMKMX6T

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/7CMKMX6TDYJJD5Q42XVRKFGER6 \
  | 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: f898a65fd31e1291f61cd5eb1514c48fb50cacfc63a84b75cc08cfad8104d531

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "db986d5aa9cd0bcb0ac7516ae7df651d247786ec7dc05bb4e81c36d189500b0b",
    "cross_cats_sorted": [
      "cond-mat.mtrl-sci"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.mes-hall",
    "submitted_at": "2011-11-16T12:08:39Z",
    "title_canon_sha256": "68a891a11965115ae73e4ddc5ed0d38be824eca8b0aacd779de5addf122310d7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1111.3775",
    "kind": "arxiv",
    "version": 2
  }
}