Pith Number

pith:BSK73OFH

pith:2017:BSK73OFHNQSTU2BUBQLTZXOFV2

not attested not anchored not stored refs pending

Cosmic Modesty

Abraham Loeb (Harvard)

arxiv:1706.05959 v2 · 2017-06-16 · physics.pop-ph · astro-ph.EP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BSK73OFHNQSTU2BUBQLTZXOFV2}

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	2026-05-18T00:41:31.919191Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0c95fdb8a76c253a68340c173cddc5ae9fafd3f2d2d5c6b161b8d06adc65c94d

Aliases

arxiv: 1706.05959 · arxiv_version: 1706.05959v2 · doi: 10.48550/arxiv.1706.05959 · pith_short_12: BSK73OFHNQST · pith_short_16: BSK73OFHNQSTU2BU · pith_short_8: BSK73OFH

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/BSK73OFHNQSTU2BUBQLTZXOFV2 \
  | 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: 0c95fdb8a76c253a68340c173cddc5ae9fafd3f2d2d5c6b161b8d06adc65c94d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "016a5a7c9cbca67939068225d0614f80410ef035b6506863b63cc28843a31fd4",
    "cross_cats_sorted": [
      "astro-ph.EP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.pop-ph",
    "submitted_at": "2017-06-16T09:49:57Z",
    "title_canon_sha256": "95e3feeadeed8cf30d9d78fd3709d33000824fdcaa07bcf9683fd5e78b626cea"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1706.05959",
    "kind": "arxiv",
    "version": 2
  }
}