Pith Number

pith:IEAE4GF2

pith:2012:IEAE4GF2AHZYVQF6F4AC2FCK6F

not attested not anchored not stored refs pending

Kepler Observations of V447 Lyr: An Eclipsing U Gem Cataclysmic Variable

((1) Armagh Observatory, (2) CRESST/GSFC, 3), (3) University Maryland, (4) NASA/Ames, (5) Florida Institute Technology, 6), (6) Bay Area ERI, (7) GSFC), Alan Smale (7), Gavin Ramsay (1), John K. Cannizzo (2, Martin Still (4, Matt A. Wood (5), Steve B. Howell (4), Thomas Barclay (4

arxiv:1207.1224 v1 · 2012-07-05 · astro-ph.SR · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{IEAE4GF2AHZYVQF6F4AC2FCK6F}

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	2026-05-18T01:56:34.371651Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

41004e18ba01f38ac0be2f002d144af153399ccbf41370dea8739fc6b7eb9f8b

Aliases

arxiv: 1207.1224 · arxiv_version: 1207.1224v1 · doi: 10.48550/arxiv.1207.1224 · pith_short_12: IEAE4GF2AHZY · pith_short_16: IEAE4GF2AHZYVQF6 · pith_short_8: IEAE4GF2

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/IEAE4GF2AHZYVQF6F4AC2FCK6F \
  | 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: 41004e18ba01f38ac0be2f002d144af153399ccbf41370dea8739fc6b7eb9f8b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b2cb85995e0f45611d4f179285275a1ea9a0713b6fcd6b08af450d8a983900a0",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2012-07-05T11:19:40Z",
    "title_canon_sha256": "04a1a04678f024843b02f5f7e862fe43f94c73a18c821cfb0d557ae9f8ed228e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1207.1224",
    "kind": "arxiv",
    "version": 1
  }
}