Pith Number

pith:PEU5ZVID

pith:2021:PEU5ZVID26SS55WNBCFRYKCVVC

not attested not anchored not stored refs pending

European Longitude Prizes. III. The Unsolved Mystery of an Alleged Venetian Longitude Prize

Australia), Richard de Grijs (Macquarie University, Sydney

arxiv:2107.03613 v1 · 2021-07-08 · physics.hist-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{PEU5ZVID26SS55WNBCFRYKCVVC}

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	2026-07-05T02:56:17.732485Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7929dcd503d7a52ef6cd088b1c2855a89fcc1df57ed9f11c62780beff683e1b9

Aliases

arxiv: 2107.03613 · arxiv_version: 2107.03613v1 · doi: 10.48550/arxiv.2107.03613 · pith_short_12: PEU5ZVID26SS · pith_short_16: PEU5ZVID26SS55WN · pith_short_8: PEU5ZVID

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/PEU5ZVID26SS55WNBCFRYKCVVC \
  | 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: 7929dcd503d7a52ef6cd088b1c2855a89fcc1df57ed9f11c62780beff683e1b9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4650819e8db78d034960e265420ed5331a7d85b07bd32e119c5053b3fa05cb69",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.hist-ph",
    "submitted_at": "2021-07-08T05:31:30Z",
    "title_canon_sha256": "7292e735fc9612db75aa0c3eae96a85bf25e09286f1334f1f9917922b3260aaf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2107.03613",
    "kind": "arxiv",
    "version": 1
  }
}