Pith Number

pith:54LPDPOQ

pith:2015:54LPDPOQWBZZDMKR7IDXKWTMIA

not attested not anchored not stored refs pending

Which type of planets do we expect to observe in the Habitable Zone?

Nuno C. Santos, Pedro Figueira, Vardan Adibekyan

arxiv:1509.02429 v2 · 2015-09-08 · 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	2026-05-18T01:11:51.400060Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ef16f1bdd0b07391b151fa07755a6c402b19d7844abba4233b77ef2e76262666

Aliases

arxiv: 1509.02429 · arxiv_version: 1509.02429v2 · doi: 10.48550/arxiv.1509.02429 · pith_short_12: 54LPDPOQWBZZ · pith_short_16: 54LPDPOQWBZZDMKR · pith_short_8: 54LPDPOQ

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/54LPDPOQWBZZDMKR7IDXKWTMIA \
  | 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: ef16f1bdd0b07391b151fa07755a6c402b19d7844abba4233b77ef2e76262666

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d3864bbf7fc453f169b5bea9f2c582e8e6f4c01f608f6cd9930863766780d557",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2015-09-08T16:11:10Z",
    "title_canon_sha256": "650c69af38832c7437c157b74849d8cb51dee81d93a3c0b2a99d16a2bf34e09f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1509.02429",
    "kind": "arxiv",
    "version": 2
  }
}