Pith Number

pith:7KDMMC3I

pith:2015:7KDMMC3IEXWEFZW2MICUJ35WKB

not attested not anchored not stored refs pending

Proposal of room-temperature diamond maser

J\"org Wrachtrup, Liang Jin, Matthias Pf\"ander, Nabeel Aslam, Ren-Bao Liu, Sen Yang

arxiv:1509.07909 v1 · 2015-09-25 · quant-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{7KDMMC3IEXWEFZW2MICUJ35WKB}

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	2026-05-18T01:31:59.756213Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fa86c60b6825ec42e6da620544efb6505bd196e66fd9ede11289b9ff8a6cafbc

Aliases

arxiv: 1509.07909 · arxiv_version: 1509.07909v1 · doi: 10.48550/arxiv.1509.07909 · pith_short_12: 7KDMMC3IEXWE · pith_short_16: 7KDMMC3IEXWEFZW2 · pith_short_8: 7KDMMC3I

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/7KDMMC3IEXWEFZW2MICUJ35WKB \
  | 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: fa86c60b6825ec42e6da620544efb6505bd196e66fd9ede11289b9ff8a6cafbc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "af9b905e3803c5c9352bb211149852d6364f805f2aaa81d3e04958ab2d55226d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2015-09-25T22:07:49Z",
    "title_canon_sha256": "33bc0c746c5ca5a2673a1330b7b190e423aa3d8c379cdea3ad30c2bb4eaf1364"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1509.07909",
    "kind": "arxiv",
    "version": 1
  }
}