Pith Number

pith:VSXOGYR7

pith:2012:VSXOGYR7DTMTXXXW7C55BVLTZA

not attested not anchored not stored refs pending

The AAVSO 2011 Demographic and Background Survey

C. Aaron Price, Kevin B. Paxson

arxiv:1204.3582 v1 · 2012-04-16 · astro-ph.IM · 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{VSXOGYR7DTMTXXXW7C55BVLTZA}

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	2026-05-18T03:57:51.152099Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

acaee3623f1cd93bdef6f8bbd0d573c82fb4a1d70f285e3715f9176320753c35

Aliases

arxiv: 1204.3582 · arxiv_version: 1204.3582v1 · doi: 10.48550/arxiv.1204.3582 · pith_short_12: VSXOGYR7DTMT · pith_short_16: VSXOGYR7DTMTXXXW · pith_short_8: VSXOGYR7

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/VSXOGYR7DTMTXXXW7C55BVLTZA \
  | 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: acaee3623f1cd93bdef6f8bbd0d573c82fb4a1d70f285e3715f9176320753c35

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7d449f5ac1e1d42370d3af370d6ff71cc5c24a635eb016612e695b308da3791d",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2012-04-16T17:54:22Z",
    "title_canon_sha256": "8477fed4db3724d6ce08e689f5048a2072fa887e5dfd375245ed4f822fd34ca5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1204.3582",
    "kind": "arxiv",
    "version": 1
  }
}