Pith Number

pith:HQ5FFGSO

pith:2018:HQ5FFGSOPQC4CXDWEPGDCK2Z35

not attested not anchored not stored refs pending

Reductive Functionalization of Graphenides with Nickel(II) Porphyrin Diazonium Compounds

Andreas Hirsch, Daniela Dasler, Frank Hauke, Hui-Lei Hou

arxiv:1805.09132 v1 · 2018-05-04 · physics.chem-ph · 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{HQ5FFGSOPQC4CXDWEPGDCK2Z35}

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	2026-05-18T00:15:08.474485Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3c3a529a4e7c05c15c7623cc312b59df7858888489cd02eda56c5a57ff23e45f

Aliases

arxiv: 1805.09132 · arxiv_version: 1805.09132v1 · doi: 10.48550/arxiv.1805.09132 · pith_short_12: HQ5FFGSOPQC4 · pith_short_16: HQ5FFGSOPQC4CXDW · pith_short_8: HQ5FFGSO

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/HQ5FFGSOPQC4CXDWEPGDCK2Z35 \
  | 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: 3c3a529a4e7c05c15c7623cc312b59df7858888489cd02eda56c5a57ff23e45f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "087f59baf696ac08c3bb6c067b6fd64d9b9838d1a7b873511073f57b4e28cdb5",
    "cross_cats_sorted": [
      "cond-mat.mtrl-sci"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.chem-ph",
    "submitted_at": "2018-05-04T10:12:57Z",
    "title_canon_sha256": "89446f3b7110f52e9c680407e3029a84db7de60359eb456bfa860735140afd2c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.09132",
    "kind": "arxiv",
    "version": 1
  }
}