Pith Number

pith:7YQ4RYKS

pith:2010:7YQ4RYKSCDL5BE6L5WVRE2VLHO

not attested not anchored not stored refs pending

A New Method for Determining Geometry of Planetary Images

Astronomy, London, N. Achilleos (Physics, P. Guio, United Kingdom), University College London

arxiv:1010.1213 v1 · 2010-10-06 · 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{7YQ4RYKSCDL5BE6L5WVRE2VLHO}

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	2026-05-18T04:39:49.610936Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fe21c8e15210d7d093cbedab126aab3baa065a8d42bb29726235b95fc8a5b6e3

Aliases

arxiv: 1010.1213 · arxiv_version: 1010.1213v1 · doi: 10.48550/arxiv.1010.1213 · pith_short_12: 7YQ4RYKSCDL5 · pith_short_16: 7YQ4RYKSCDL5BE6L · pith_short_8: 7YQ4RYKS

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/7YQ4RYKSCDL5BE6L5WVRE2VLHO \
  | 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: fe21c8e15210d7d093cbedab126aab3baa065a8d42bb29726235b95fc8a5b6e3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "188f215dd27597a2598cfaa4c7e7e8241a0d662130c234e0371eb89ff84f21ec",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2010-10-06T17:33:15Z",
    "title_canon_sha256": "4030b79054b3541a70e70a8bf8e753b68bee9f141e1310d6ce33b7185ba727e0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1010.1213",
    "kind": "arxiv",
    "version": 1
  }
}