Pith Number

pith:44HBOZ7E

pith:2015:44HBOZ7EVPYNDMY5JQ25YGVALY

not attested not anchored not stored refs pending

What's the Matter in Cosmology?

Timothy Clifton

arxiv:1509.06682 v1 · 2015-09-22 · gr-qc · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{44HBOZ7EVPYNDMY5JQ25YGVALY}

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	2026-05-18T01:32:19.643099Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e70e1767e4abf0d1b31d4c35dc1aa05e34c33a323df92f47c888557f2c143bc2

Aliases

arxiv: 1509.06682 · arxiv_version: 1509.06682v1 · doi: 10.48550/arxiv.1509.06682 · pith_short_12: 44HBOZ7EVPYN · pith_short_16: 44HBOZ7EVPYNDMY5 · pith_short_8: 44HBOZ7E

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/44HBOZ7EVPYNDMY5JQ25YGVALY \
  | 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: e70e1767e4abf0d1b31d4c35dc1aa05e34c33a323df92f47c888557f2c143bc2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4d82de8fd9adfada1662d4b4c59679be868ca83013f62d9c36e59fe07a3c3f0d",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2015-09-22T16:49:26Z",
    "title_canon_sha256": "5f25e4f63c3024a53d882e0a49853e39eecd63c2ff993f878233daa239a564e5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1509.06682",
    "kind": "arxiv",
    "version": 1
  }
}