Pith Number

pith:7HBWM5NR

pith:2015:7HBWM5NR4YWETUTFDDFRSNMIMK

not attested not anchored not stored refs pending

Cold electron beams from cryo-cooled, alkali antimonide photocathodes

Hyeri Lee, Ivan Bazarov, Luca Cultrera, Siddharth Karkare, Xianghong Liu

arxiv:1504.05920 v1 · 2015-04-22 · 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{7HBWM5NR4YWETUTFDDFRSNMIMK}

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	2026-05-18T01:25:00.843971Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f9c36675b1e62c49d26518cb19358862b8e4230bbaf1c4b1b8252c17165307e1

Aliases

arxiv: 1504.05920 · arxiv_version: 1504.05920v1 · doi: 10.48550/arxiv.1504.05920 · pith_short_12: 7HBWM5NR4YWE · pith_short_16: 7HBWM5NR4YWETUTF · pith_short_8: 7HBWM5NR

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/7HBWM5NR4YWETUTFDDFRSNMIMK \
  | 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: f9c36675b1e62c49d26518cb19358862b8e4230bbaf1c4b1b8252c17165307e1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2ff4a0c1b7581b701a0e2bab03a2a940da54c0af56e4e4d40f847193194daa56",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.acc-ph",
    "submitted_at": "2015-04-22T18:47:59Z",
    "title_canon_sha256": "b1940fcd5abdd34e3c04a335cc9422eb5da6cbe4f45caba79e78df863cbe2cbd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.05920",
    "kind": "arxiv",
    "version": 1
  }
}