Pith Number

pith:U73EJYPU

pith:2007:U73EJYPUYQJZPOXJA3EPTMSS7U

not attested not anchored not stored refs pending

Characterization of the near-Earth Asteroid 2002NY40

Dennis Liang, Doyle T. Hall, Jacob K. Barros, John L. Africano, John V. Lambert, Jr., Keith T. Knox, Kris M. Hamada, Lewis C. Roberts, Paul F. Sydney, Paul Kervin

arxiv:0709.0984 v1 · 2007-09-07 · astro-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{U73EJYPUYQJZPOXJA3EPTMSS7U}

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	2026-05-18T03:48:11.969669Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a7f644e1f4c41397bae906c8f9b252fd0d532ee736d5d69b1146aa2bf2eedd17

Aliases

arxiv: 0709.0984 · arxiv_version: 0709.0984v1 · doi: 10.48550/arxiv.0709.0984 · pith_short_12: U73EJYPUYQJZ · pith_short_16: U73EJYPUYQJZPOXJ · pith_short_8: U73EJYPU

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/U73EJYPUYQJZPOXJA3EPTMSS7U \
  | 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: a7f644e1f4c41397bae906c8f9b252fd0d532ee736d5d69b1146aa2bf2eedd17

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fa1b29608b189480557e4e148d19589d0e4ba0585ba94a20506af46f38f73fc3",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2007-09-07T02:38:38Z",
    "title_canon_sha256": "933284b1c9cc95697c658c55f626231e26957825cbd56b31394ca48d7b772354"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0709.0984",
    "kind": "arxiv",
    "version": 1
  }
}