Pith Number

pith:NPM77RTZ

pith:2020:NPM77RTZOCQF7KTJVKRQQHKS2G

not attested not anchored not stored refs pending

In Memory of Prof. Hidekuni Takekoshi

H. Okamoto, M.Mizumoto, R.A. Jameson, T. Igaki, Y. Iwashita

arxiv:2008.02718 v1 · 2020-08-06 · physics.hist-ph · 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{NPM77RTZOCQF7KTJVKRQQHKS2G}

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	2026-07-05T01:25:18.900126Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6bd9ffc67970a05faa69aaa3081d52d1905b5ed642775b8d4c6ff9c93804cfa8

Aliases

arxiv: 2008.02718 · arxiv_version: 2008.02718v1 · doi: 10.48550/arxiv.2008.02718 · pith_short_12: NPM77RTZOCQF · pith_short_16: NPM77RTZOCQF7KTJ · pith_short_8: NPM77RTZ

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/NPM77RTZOCQF7KTJVKRQQHKS2G \
  | 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: 6bd9ffc67970a05faa69aaa3081d52d1905b5ed642775b8d4c6ff9c93804cfa8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6d7f5661767f2e2bc9445b3f9d171f8d07f49e2666b0483c0201b2c584feddba",
    "cross_cats_sorted": [
      "physics.acc-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.hist-ph",
    "submitted_at": "2020-08-06T15:40:13Z",
    "title_canon_sha256": "f60c0e06546aa8f12a844602c8424a1b6c7c0ff4bef0e1dc657924d1e266a814"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2008.02718",
    "kind": "arxiv",
    "version": 1
  }
}