Pith Number

pith:CBBN3OC3

pith:2011:CBBN3OC3MFKXOUEIKIFOVQNJQF

not attested not anchored not stored refs pending

Measurement requirements for a near-Earth asteroid impact mitigation demonstration mission

Andrew J. Ball, Christopher Saunders, Neil McBride, Nigel Wells, Stephen D. Wolters

arxiv:1107.4229 v1 · 2011-07-21 · astro-ph.EP · physics.space-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{CBBN3OC3MFKXOUEIKIFOVQNJQF}

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	2026-05-18T04:17:12.916867Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1042ddb85b6155775088520aeac1a9817c94c7316bcaa03fa6412b06ba2e500c

Aliases

arxiv: 1107.4229 · arxiv_version: 1107.4229v1 · doi: 10.48550/arxiv.1107.4229 · pith_short_12: CBBN3OC3MFKX · pith_short_16: CBBN3OC3MFKXOUEI · pith_short_8: CBBN3OC3

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/CBBN3OC3MFKXOUEIKIFOVQNJQF \
  | 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: 1042ddb85b6155775088520aeac1a9817c94c7316bcaa03fa6412b06ba2e500c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0e4c44e5b150a75d6a295023d09ec127ad7a8a76189759934fc40b3165dd08de",
    "cross_cats_sorted": [
      "physics.space-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2011-07-21T10:36:46Z",
    "title_canon_sha256": "92916e1583a5cfd8a311bbc7d004df197bd320be3d2356acd9555670692203c9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1107.4229",
    "kind": "arxiv",
    "version": 1
  }
}