Pith Number

pith:IGCCMIQX

pith:2015:IGCCMIQXNB5ODJYVJOC6GQFW4S

not attested not anchored not stored refs pending

42 Years of Continuous Observations of the Solar Diameter from 1974 to 2015

Alexandre H. Andrei, Costantino Sigismondi, Jucira L. Penna, Nelson V. Leister, Sergio C. Boscardin

arxiv:1512.08743 v1 · 2015-12-29 · 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{IGCCMIQXNB5ODJYVJOC6GQFW4S}

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	2026-05-18T01:23:35.000860Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4184262217687ae1a7154b85e340b6e4a773bf06561f4d26477a240d5afc6d4d

Aliases

arxiv: 1512.08743 · arxiv_version: 1512.08743v1 · doi: 10.48550/arxiv.1512.08743 · pith_short_12: IGCCMIQXNB5O · pith_short_16: IGCCMIQXNB5ODJYV · pith_short_8: IGCCMIQX

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/IGCCMIQXNB5ODJYVJOC6GQFW4S \
  | 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: 4184262217687ae1a7154b85e340b6e4a773bf06561f4d26477a240d5afc6d4d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a11700f5ada0e4b9ea4a2a9ff4d80d5f598e304981a9074becec7c013b629299",
    "cross_cats_sorted": [
      "astro-ph.IM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2015-12-29T18:21:06Z",
    "title_canon_sha256": "6312547c6432f1f3501b98621fdd219f929463cf2c2571b6d98e5ed17dc5dba5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1512.08743",
    "kind": "arxiv",
    "version": 1
  }
}