Pith Number

pith:7ZWQJSR2

pith:2026:7ZWQJSR2AKLZBBOA5H2W5OI4OM

not attested not anchored not stored refs pending

Plastics and Composite Materials

Ana Teresa Perez Fontenla

arxiv:2605.13506 v1 · 2026-05-13 · physics.acc-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7ZWQJSR2AKLZBBOA5H2W5OI4OM}

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	2026-05-18T02:44:24.632909Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fe6d04ca3a02979085c0e9f56eb91c732e3ef6ef422c11f398237b8eb1109a5b

Aliases

arxiv: 2605.13506 · arxiv_version: 2605.13506v1 · doi: 10.48550/arxiv.2605.13506 · pith_short_12: 7ZWQJSR2AKLZ · pith_short_16: 7ZWQJSR2AKLZBBOA · pith_short_8: 7ZWQJSR2

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/7ZWQJSR2AKLZBBOA5H2W5OI4OM \
  | 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: fe6d04ca3a02979085c0e9f56eb91c732e3ef6ef422c11f398237b8eb1109a5b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d14cdadf620e0e6b0ef6325c01f0f397f83b6e2aa179a235a49de0494531cc5f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.acc-ph",
    "submitted_at": "2026-05-13T13:27:04Z",
    "title_canon_sha256": "c0fd1a3420e09a7cef5782b20a4a9e55bf6707fc6b65750d45558a3260e6c2aa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.13506",
    "kind": "arxiv",
    "version": 1
  }
}