Pith Number

pith:7Z6LJNBG

pith:2015:7Z6LJNBGDQPDOEMYO3GJWU77AM

not attested not anchored not stored refs pending

New definition of wormhole throat

Keisuke Izumi, Tetsuya Shiromizu, Yoshimune Tomikawa

arxiv:1503.01926 v1 · 2015-03-06 · gr-qc

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7Z6LJNBGDQPDOEMYO3GJWU77AM}

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	2026-05-18T01:55:01.364673Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fe7cb4b4261c1e37119876cc9b53ff033047cc45794b4f01127d36574a4256d9

Aliases

arxiv: 1503.01926 · arxiv_version: 1503.01926v1 · doi: 10.48550/arxiv.1503.01926 · pith_short_12: 7Z6LJNBGDQPD · pith_short_16: 7Z6LJNBGDQPDOEMY · pith_short_8: 7Z6LJNBG

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/7Z6LJNBGDQPDOEMYO3GJWU77AM \
  | 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: fe7cb4b4261c1e37119876cc9b53ff033047cc45794b4f01127d36574a4256d9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "196bc485b000799b759e4ecaaa1c08886907f9f170440672fed896b87dee246a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2015-03-06T11:41:47Z",
    "title_canon_sha256": "db387b5b87d3575110bbf3816a9829698e7a895ff5847668815ada017aa42f1f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1503.01926",
    "kind": "arxiv",
    "version": 1
  }
}