Pith Number

pith:QZKRJRLF

pith:2015:QZKRJRLFC234CZIVSIROMXTMYJ

not attested not anchored not stored refs pending

Tao Probing the End of the World

Futoshi Yagi, Masato Taki, Sung-Soo Kim

arxiv:1504.03672 v3 · 2015-04-14 · hep-th

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QZKRJRLFC234CZIVSIROMXTMYJ}

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	2026-05-18T01:35:59.733245Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

865514c56516b7c165159222e65e6cc24a3dffedb0e81fcf8689a78b1817070b

Aliases

arxiv: 1504.03672 · arxiv_version: 1504.03672v3 · doi: 10.48550/arxiv.1504.03672 · pith_short_12: QZKRJRLFC234 · pith_short_16: QZKRJRLFC234CZIV · pith_short_8: QZKRJRLF

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/QZKRJRLFC234CZIVSIROMXTMYJ \
  | 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: 865514c56516b7c165159222e65e6cc24a3dffedb0e81fcf8689a78b1817070b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7506e699269e84afa0ec5cb98f4eef2532eefac0b38208c7bf0c85d9d7897075",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2015-04-14T19:50:57Z",
    "title_canon_sha256": "edb20b8f1f3a03f070c699b2c59c28786a9c5d8ec22d335f5cc7f8066f608b2c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.03672",
    "kind": "arxiv",
    "version": 3
  }
}