Pith Number

pith:O7Z2GL4I

pith:2009:O7Z2GL4IJWMWDXHT7RZUJ7U25J

not attested not anchored not stored refs pending

Detection of Earth-impacting asteroids with the next generation all-sky surveys

Larry Denneau, Mikael Granvik, Peter Vere\v{s}, Richard Wainscoat, Robert Jedicke, Shinsuke Abe, Steve Chesley, Tommy Grav

arxiv:0905.3685 v1 · 2009-05-22 · astro-ph.EP

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

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	2026-05-18T04:25:28.741386Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

77f3a32f884d9961dcf3fc7344fe9aea6d030db11bf401f8218ac52ed7f2dce6

Aliases

arxiv: 0905.3685 · arxiv_version: 0905.3685v1 · doi: 10.48550/arxiv.0905.3685 · pith_short_12: O7Z2GL4IJWMW · pith_short_16: O7Z2GL4IJWMWDXHT · pith_short_8: O7Z2GL4I

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/O7Z2GL4IJWMWDXHT7RZUJ7U25J \
  | 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: 77f3a32f884d9961dcf3fc7344fe9aea6d030db11bf401f8218ac52ed7f2dce6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "05536629a5b28741faa275c510f7dda04b76e908c860116047d50b506dbed18e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2009-05-22T13:52:33Z",
    "title_canon_sha256": "acaf381b534e8a99d38b74456177ce924992f558a1e29f41560bd0892aa762fa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0905.3685",
    "kind": "arxiv",
    "version": 1
  }
}