Pith Number

pith:IT4CVNIV

pith:2007:IT4CVNIV2PFZVO2OY4VI4LIARG

not attested not anchored not stored refs pending

Results of the photometry of the spotted dM1-2e star EY Draconis

K. Vida

arxiv:0708.1864 v1 · 2007-08-14 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{IT4CVNIV2PFZVO2OY4VI4LIARG}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T03:31:42.053985Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

44f82ab515d3cb9abb4ec72a8e2d0089a2749eae52cb62b8802dd61bcf921dae

Aliases

arxiv: 0708.1864 · arxiv_version: 0708.1864v1 · doi: 10.48550/arxiv.0708.1864 · pith_short_12: IT4CVNIV2PFZ · pith_short_16: IT4CVNIV2PFZVO2O · pith_short_8: IT4CVNIV

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/IT4CVNIV2PFZVO2OY4VI4LIARG \
  | 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: 44f82ab515d3cb9abb4ec72a8e2d0089a2749eae52cb62b8802dd61bcf921dae

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c21550cbc77a72563789ef5149b77f7490f7a7b5bbc029b9f0c33999ded15398",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2007-08-14T11:31:02Z",
    "title_canon_sha256": "b6b6da9b4995866fe71f7b17c58f400acd5d6cd7b6b6299e33b2d8fccfa0ff41"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0708.1864",
    "kind": "arxiv",
    "version": 1
  }
}