Pith Number

pith:BWPX7O4X

pith:2006:BWPX7O4X626DCWSY7ZZPPVFNH2

not attested not anchored not stored refs pending

Cosmological matching conditions

David Wands (Portsmouth), Edmund J. Copeland (Nottingham)

arxiv:hep-th/0609183 v1 · 2006-09-26 · hep-th · astro-ph · gr-qc

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BWPX7O4X626DCWSY7ZZPPVFNH2}

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	2026-05-18T04:38:26.472912Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0d9f7fbb97f6bc315a58fe72f7d4ad3eaf0aefd4f35fb67512b08a0cf0da681b

Aliases

arxiv: hep-th/0609183 · arxiv_version: hep-th/0609183v1 · doi: 10.48550/arxiv.hep-th/0609183 · pith_short_12: BWPX7O4X626D · pith_short_16: BWPX7O4X626DCWSY · pith_short_8: BWPX7O4X

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/BWPX7O4X626DCWSY7ZZPPVFNH2 \
  | 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: 0d9f7fbb97f6bc315a58fe72f7d4ad3eaf0aefd4f35fb67512b08a0cf0da681b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ac30682b37de962087406cabb517aa0077e97e9ea49256cf7e42162c5047e640",
    "cross_cats_sorted": [
      "astro-ph",
      "gr-qc"
    ],
    "license": "",
    "primary_cat": "hep-th",
    "submitted_at": "2006-09-26T13:18:55Z",
    "title_canon_sha256": "44ee34b41b1174b2c6e4bf16e7c09b4f1b7bf8fdd06eeff7f06fe5a68e9d6a7c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "hep-th/0609183",
    "kind": "arxiv",
    "version": 1
  }
}