Pith Number

pith:U5L2OG3U

pith:2013:U5L2OG3UDS3QK2Q5JVESRUBT2L

not attested not anchored not stored refs pending

Fifty Years of TT Arietis

J. Smak

arxiv:1312.5878 v1 · 2013-12-20 · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{U5L2OG3UDS3QK2Q5JVESRUBT2L}

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	2026-05-18T02:56:04.966464Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a757a71b741cb7056a1d4d4928d033d2db6577f8c03a4a85b65ca543b036f3cc

Aliases

arxiv: 1312.5878 · arxiv_version: 1312.5878v1 · doi: 10.48550/arxiv.1312.5878 · pith_short_12: U5L2OG3UDS3Q · pith_short_16: U5L2OG3UDS3QK2Q5 · pith_short_8: U5L2OG3U

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/U5L2OG3UDS3QK2Q5JVESRUBT2L \
  | 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: a757a71b741cb7056a1d4d4928d033d2db6577f8c03a4a85b65ca543b036f3cc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "81af1a6bf6f01e44524623c6a77b1d3d9431c3f8a98e8c694cbcd09dad0405a8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2013-12-20T10:39:51Z",
    "title_canon_sha256": "9a05848cf8a317da9a2b5d15071104a6382ab4ea63705ca994af2c35d7706950"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1312.5878",
    "kind": "arxiv",
    "version": 1
  }
}