Pith Number

pith:2U5KT3EX

pith:2010:2U5KT3EXXD3EXZK5KOTZMY4OPS

not attested not anchored not stored refs pending

An Algorithmic Approach to Heterotic String Phenomenology

Yang-Hui He

arxiv:1001.2419 v1 · 2010-01-14 · 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{2U5KT3EXXD3EXZK5KOTZMY4OPS}

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	2026-05-18T02:09:52.235214Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d53aa9ec97b8f64be55d53a796638e7cbadacdfe1026a4f80ff78ff10ca79f02

Aliases

arxiv: 1001.2419 · arxiv_version: 1001.2419v1 · doi: 10.48550/arxiv.1001.2419 · pith_short_12: 2U5KT3EXXD3E · pith_short_16: 2U5KT3EXXD3EXZK5 · pith_short_8: 2U5KT3EX

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/2U5KT3EXXD3EXZK5KOTZMY4OPS \
  | 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: d53aa9ec97b8f64be55d53a796638e7cbadacdfe1026a4f80ff78ff10ca79f02

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0f4c98ed2f85c614ade154f32d0dcc5e8fda6d8b36462497ff6e4e32130de114",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2010-01-14T11:03:30Z",
    "title_canon_sha256": "d85ac16a79fedf22a0af47fae72f6d5f4912732152b694451b3a914fd27e9103"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1001.2419",
    "kind": "arxiv",
    "version": 1
  }
}