Pith Number

pith:D2WA6FQ2

pith:2026:D2WA6FQ2XG3F34NEIL6Y5D7P5X

not attested not anchored not stored refs pending

Photooxidative ageing of 3D printed polymers PLA, ABS, PET, HIPS and PC induced by long-term UV radiation

Jan Tomastik, Karolina Siskova, Lukas Vaclavek, Radim Ctvrtlik

arxiv:2606.00068 v1 · 2026-05-20 · physics.app-ph · 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{D2WA6FQ2XG3F34NEIL6Y5D7P5X}

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	2026-06-02T00:03:14.059656Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1eac0f161ab9b65df1a442fd8e8fefedd4a1add8785e7cc504b1e88893603054

Aliases

arxiv: 2606.00068 · arxiv_version: 2606.00068v1 · doi: 10.48550/arxiv.2606.00068 · pith_short_12: D2WA6FQ2XG3F · pith_short_16: D2WA6FQ2XG3F34NE · pith_short_8: D2WA6FQ2

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/D2WA6FQ2XG3F34NEIL6Y5D7P5X \
  | 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: 1eac0f161ab9b65df1a442fd8e8fefedd4a1add8785e7cc504b1e88893603054

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5e9420e4abc12d2f4fa51c5ea36212c4849e04b6a8fe1fff2ac7bb39b9a59943",
    "cross_cats_sorted": [
      "cond-mat.mes-hall",
      "cond-mat.mtrl-sci"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "physics.app-ph",
    "submitted_at": "2026-05-20T13:54:55Z",
    "title_canon_sha256": "a473a76f56976524db0b0f5f4e9e0333dc984d48af9681417f2360a8b48471fc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.00068",
    "kind": "arxiv",
    "version": 1
  }
}