Pith Number

pith:C2K72S7E

pith:2016:C2K72S7EV3IORDOOP6CVBF7ECA

not attested not anchored not stored refs pending

Are we living near the center of a local void?

Cyril Pitrou, Giulia Cusin, Jean-Philippe Uzan

arxiv:1609.02061 v3 · 2016-09-07 · astro-ph.CO · gr-qc · hep-th

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	2026-05-18T00:48:17.144181Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1695fd4be4aed0e88dce7f855097e410069f0536743f8a83041576d087a3ac24

Aliases

arxiv: 1609.02061 · arxiv_version: 1609.02061v3 · doi: 10.48550/arxiv.1609.02061 · pith_short_12: C2K72S7EV3IO · pith_short_16: C2K72S7EV3IORDOO · pith_short_8: C2K72S7E

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/C2K72S7EV3IORDOOP6CVBF7ECA \
  | 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: 1695fd4be4aed0e88dce7f855097e410069f0536743f8a83041576d087a3ac24

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a5786bdaa775e7ab67fa8923d8faa84b2535887b74c83621e4484b5d5ef77b13",
    "cross_cats_sorted": [
      "gr-qc",
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2016-09-07T16:49:25Z",
    "title_canon_sha256": "cbbc50da01613474fb1cb30967625dd3d4b686237b687bcbc36d9c43ec052489"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1609.02061",
    "kind": "arxiv",
    "version": 3
  }
}