Pith Number

pith:Y44AUGGC

pith:2010:Y44AUGGCCVZXYBNQY4EPPOFKJN

not attested not anchored not stored refs pending

Low-Amplitude Variables: Distinguishing RR Lyrae stars from Eclipsing Binaries

(2) Smithsonian), T. D. Kinman (1), Warren R. Brown (2) ((1) NOAO

arxiv:1003.3656 v1 · 2010-03-18 · astro-ph.GA · 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{Y44AUGGCCVZXYBNQY4EPPOFKJN}

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	2026-05-18T02:08:25.836354Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c7380a18c215737c05b0c708f7b8aa4b5f00cad9fb6bd41de825c967cbf904ef

Aliases

arxiv: 1003.3656 · arxiv_version: 1003.3656v1 · doi: 10.48550/arxiv.1003.3656 · pith_short_12: Y44AUGGCCVZX · pith_short_16: Y44AUGGCCVZXYBNQ · pith_short_8: Y44AUGGC

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/Y44AUGGCCVZXYBNQY4EPPOFKJN \
  | 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: c7380a18c215737c05b0c708f7b8aa4b5f00cad9fb6bd41de825c967cbf904ef

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "81a81fd0421e62ca4be8c417742a19b996ed67283e56617a54777919920c4d99",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2010-03-18T19:08:53Z",
    "title_canon_sha256": "fa385f06f4732559d2ff0bbab32cf1bc67757251e675a11d8bed9285a7d3950f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1003.3656",
    "kind": "arxiv",
    "version": 1
  }
}