Pith Number

pith:JMZ34QVY

pith:2020:JMZ34QVYLNOJHGWIAXE4ADVVUW

not attested not anchored not stored refs pending

Detection of light emission produced in the process of positronium formation

A. Wagner, D. Weinberger, E. Hirschmann, M. Butterling, M.O. Liedke, M. Pietrow, P. Slomski, R. Krause-Rehberg, R. Zaleski

arxiv:2012.03545 v1 · 2020-12-07 · cond-mat.mtrl-sci · physics.app-ph · physics.atom-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{JMZ34QVYLNOJHGWIAXE4ADVVUW}

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	2026-07-05T01:57:30.910515Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4b33be42b85b5c939ac805c9c00eb5a5a49454f8925fd1ec860253a5fc43c62b

Aliases

arxiv: 2012.03545 · arxiv_version: 2012.03545v1 · doi: 10.48550/arxiv.2012.03545 · pith_short_12: JMZ34QVYLNOJ · pith_short_16: JMZ34QVYLNOJHGWI · pith_short_8: JMZ34QVY

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/JMZ34QVYLNOJHGWIAXE4ADVVUW \
  | 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: 4b33be42b85b5c939ac805c9c00eb5a5a49454f8925fd1ec860253a5fc43c62b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9e59f6966da20e7c1ea2eee74466adeea08a0b64d74de2bc6f4930210ea6fcc3",
    "cross_cats_sorted": [
      "physics.app-ph",
      "physics.atom-ph"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cond-mat.mtrl-sci",
    "submitted_at": "2020-12-07T09:17:03Z",
    "title_canon_sha256": "e671aca9501e5e70cfdc6336116b5aba67a8b23b590fc538b3ad3ada071e59fb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2012.03545",
    "kind": "arxiv",
    "version": 1
  }
}