Pith Number

pith:REI2Z5BF

pith:2018:REI2Z5BFE4VTXESQ3OWBDIRWNI

not attested not anchored not stored refs pending

T Tauri stars in the SuperWASP and NSVS surveys

Barry Smalley, Ernst Paunzen, Martin Va\v{n}ko, \v{L}ubom\'ir Hamb\'alek

arxiv:1811.08655 v1 · 2018-11-21 · 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{REI2Z5BFE4VTXESQ3OWBDIRWNI}

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	2026-05-17T23:58:30.147331Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8911acf425272b3b9250dbac11a2366a098937fd0ceb14157f387dfa6fbd0991

Aliases

arxiv: 1811.08655 · arxiv_version: 1811.08655v1 · doi: 10.48550/arxiv.1811.08655 · pith_short_12: REI2Z5BFE4VT · pith_short_16: REI2Z5BFE4VTXESQ · pith_short_8: REI2Z5BF

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/REI2Z5BFE4VTXESQ3OWBDIRWNI \
  | 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: 8911acf425272b3b9250dbac11a2366a098937fd0ceb14157f387dfa6fbd0991

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e94b508068e2a8472a397a73f3fdc06306161d7c1616cd8f8ad1ae9a0b6d98c2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2018-11-21T09:57:42Z",
    "title_canon_sha256": "0cd613a001fbd92e412f9e1d10a76105703eb7f3088d4d0597169feee5c2a422"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1811.08655",
    "kind": "arxiv",
    "version": 1
  }
}