Pith Number

pith:7CPMFDGM

pith:2014:7CPMFDGM35I6E4H3RENCLJOLK2

not attested not anchored not stored refs pending

Measures of the Earth Obliquity during the 1701 Winter Solstice at the Clementine Meridian Line in Rome

Alexandre Humberto Andrei, Costantino Sigismondi, Veronica Regoli

arxiv:1412.6096 v1 · 2014-12-18 · physics.hist-ph · physics.pop-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7CPMFDGM35I6E4H3RENCLJOLK2}

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	2026-05-18T02:30:54.440476Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f89ec28cccdf51e270fb891a25a5cb56b1b4dbe253da125506f58c52364578b4

Aliases

arxiv: 1412.6096 · arxiv_version: 1412.6096v1 · doi: 10.48550/arxiv.1412.6096 · pith_short_12: 7CPMFDGM35I6 · pith_short_16: 7CPMFDGM35I6E4H3 · pith_short_8: 7CPMFDGM

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/7CPMFDGM35I6E4H3RENCLJOLK2 \
  | 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: f89ec28cccdf51e270fb891a25a5cb56b1b4dbe253da125506f58c52364578b4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a64e71949459a960def36414e9fd4457912f05ef914cc204af96b2f3e48016ba",
    "cross_cats_sorted": [
      "physics.pop-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.hist-ph",
    "submitted_at": "2014-12-18T19:32:26Z",
    "title_canon_sha256": "e6ee434e76ce42dcfcdf0a3cbbd0ba504b3c8e0c487f4639f482625ee3b49ee5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1412.6096",
    "kind": "arxiv",
    "version": 1
  }
}