Pith Number

pith:7ZCA7VJ4

pith:2017:7ZCA7VJ4LJLMJG2E3G3SUPD7CM

not attested not anchored not stored refs pending

Unexpected 3+ valence of iron in FeO$_2$, a geologically important material lying "in between" oxides and peroxides

A.I. Poteryaev, A.O. Shorikov, D.I. Khomskii, S.L. Skornyakov, S.V. Streltsov

arxiv:1705.08085 v2 · 2017-05-23 · cond-mat.str-el · astro-ph.EP · 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{7ZCA7VJ4LJLMJG2E3G3SUPD7CM}

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	2026-05-18T00:30:34.107162Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fe440fd53c5a56c49b44d9b72a3c7f132e36354c0b9db8e0c02395d4dac67f18

Aliases

arxiv: 1705.08085 · arxiv_version: 1705.08085v2 · doi: 10.48550/arxiv.1705.08085 · pith_short_12: 7ZCA7VJ4LJLM · pith_short_16: 7ZCA7VJ4LJLMJG2E · pith_short_8: 7ZCA7VJ4

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/7ZCA7VJ4LJLMJG2E3G3SUPD7CM \
  | 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: fe440fd53c5a56c49b44d9b72a3c7f132e36354c0b9db8e0c02395d4dac67f18

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ca823a4fd3f7cfa7cca578d9dd53cfda3e4bcef7b0e79fd22a772fd258019ab4",
    "cross_cats_sorted": [
      "astro-ph.EP",
      "cond-mat.mtrl-sci"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.str-el",
    "submitted_at": "2017-05-23T05:53:44Z",
    "title_canon_sha256": "d281e63785f19df5fa6d63f2f90573a709c89b3b2c01aa012c8794f000c1f8ef"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1705.08085",
    "kind": "arxiv",
    "version": 2
  }
}