Pith Number

pith:55NGJL7W

pith:2012:55NGJL7WTCYPZDK3SQQ5Z6EJVH

not attested not anchored not stored refs pending

What have we learned from helioseismology, what have we really learned, and what do we aspire to learn?

Douglas Gough

arxiv:1210.0820 v1 · 2012-10-02 · 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{55NGJL7WTCYPZDK3SQQ5Z6EJVH}

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	2026-05-18T03:44:14.191100Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ef5a64aff698b0fc8d5b9421dcf889a9c5e80f76d0a96945a5941d4e054ef484

Aliases

arxiv: 1210.0820 · arxiv_version: 1210.0820v1 · doi: 10.48550/arxiv.1210.0820 · pith_short_12: 55NGJL7WTCYP · pith_short_16: 55NGJL7WTCYPZDK3 · pith_short_8: 55NGJL7W

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/55NGJL7WTCYPZDK3SQQ5Z6EJVH \
  | 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: ef5a64aff698b0fc8d5b9421dcf889a9c5e80f76d0a96945a5941d4e054ef484

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9f7decd04762a78a5f6dbbcf2191c412d608a2dce7a121da4751b15b98ed45ed",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2012-10-02T16:05:14Z",
    "title_canon_sha256": "08691eb66626eb9c0bed2e6e4b693c8699852cda97fa776e3bf267d67a8ce513"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1210.0820",
    "kind": "arxiv",
    "version": 1
  }
}