Pith Number

pith:RIKDQ7VY

pith:2015:RIKDQ7VYNFP2UG2JYOWPASOHTN

not attested not anchored not stored refs pending

Chromatic annuli formation and sample oxidation on copper thin films by femtosecond laser

Chingyue Wang, Dongqing Pang, Minglie Hu, Salvatore Amoruso, Shutong He

arxiv:1512.03546 v1 · 2015-12-11 · cond-mat.mtrl-sci · physics.chem-ph · physics.optics

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{RIKDQ7VYNFP2UG2JYOWPASOHTN}

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	2026-05-18T01:14:01.749170Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8a14387eb8695faa1b49c3acf049c79b417324cc4ae5650ee99c05448afe66ca

Aliases

arxiv: 1512.03546 · arxiv_version: 1512.03546v1 · doi: 10.48550/arxiv.1512.03546 · pith_short_12: RIKDQ7VYNFP2 · pith_short_16: RIKDQ7VYNFP2UG2J · pith_short_8: RIKDQ7VY

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/RIKDQ7VYNFP2UG2JYOWPASOHTN \
  | 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: 8a14387eb8695faa1b49c3acf049c79b417324cc4ae5650ee99c05448afe66ca

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "aec689982ac31ae40c836557d67c4ac6119f813c5956e7e5ca24f31f9bc4339f",
    "cross_cats_sorted": [
      "physics.chem-ph",
      "physics.optics"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.mtrl-sci",
    "submitted_at": "2015-12-11T07:58:15Z",
    "title_canon_sha256": "09ac11db320276833d8d5e638c4edf4a2366f275e647a5fe17589c29dd0372d2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1512.03546",
    "kind": "arxiv",
    "version": 1
  }
}