Pith Number

pith:H7XXP2TK

pith:2012:H7XXP2TK7QLEXKZ23KBUG6Y434

not attested not anchored not stored refs pending

Solar astrometry: the status of art in 2011

Costantino Sigismondi

arxiv:1201.4012 v2 · 2012-01-19 · astro-ph.SR · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{H7XXP2TK7QLEXKZ23KBUG6Y434}

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	2026-05-18T01:58:46.952013Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3fef77ea6afc164bab3ada83437b1cdf27f01da3f2fd5045d8d2605ad18b7755

Aliases

arxiv: 1201.4012 · arxiv_version: 1201.4012v2 · doi: 10.48550/arxiv.1201.4012 · pith_short_12: H7XXP2TK7QLE · pith_short_16: H7XXP2TK7QLEXKZ2 · pith_short_8: H7XXP2TK

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/H7XXP2TK7QLEXKZ23KBUG6Y434 \
  | 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: 3fef77ea6afc164bab3ada83437b1cdf27f01da3f2fd5045d8d2605ad18b7755

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d382fc4d25196d616675c37f3db9a398dd7c48ded060376ab48ec9a7dd709d72",
    "cross_cats_sorted": [
      "astro-ph.IM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2012-01-19T10:37:53Z",
    "title_canon_sha256": "cb2422eff2b378562c9ec37cf661ef8d64e121d239aafe6767f91309952a85a7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1201.4012",
    "kind": "arxiv",
    "version": 2
  }
}