Pith Number

pith:QI2WLIZQ

pith:2005:QI2WLIZQ4MQCIGV6O4LDN5QDOF

not attested not anchored not stored refs pending

On the quantum origin of the seeds of cosmic structure

Alejandro Perez, Daniel Sudarsky, Hanno Sahlmann

arxiv:gr-qc/0508100 v3 · 2005-08-24 · gr-qc · astro-ph · hep-th · quant-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QI2WLIZQ4MQCIGV6O4LDN5QDOF}

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.

Cited by

1 paper in Pith

On the Quantum-to-Classical Transition of Primordial Perturbations

Receipt and verification

First computed	2026-05-18T01:39:20.438149Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

823565a330e320241abe771636f603714c6d2b17320e9e73e616ff6386fc1c74

Aliases

arxiv: gr-qc/0508100 · arxiv_version: gr-qc/0508100v3 · doi: 10.48550/arxiv.gr-qc/0508100 · pith_short_12: QI2WLIZQ4MQC · pith_short_16: QI2WLIZQ4MQCIGV6 · pith_short_8: QI2WLIZQ

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/QI2WLIZQ4MQCIGV6O4LDN5QDOF \
  | 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: 823565a330e320241abe771636f603714c6d2b17320e9e73e616ff6386fc1c74

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "50d1598fd8f1a6893c5a640245621d5350bf40c8f78572b68f3dcfaad648951a",
    "cross_cats_sorted": [
      "astro-ph",
      "hep-th",
      "quant-ph"
    ],
    "license": "",
    "primary_cat": "gr-qc",
    "submitted_at": "2005-08-24T13:54:34Z",
    "title_canon_sha256": "b93e82de50ec92a439f7f23938067c1091d31aef6f7b245d6558aa34502c3e44"
  },
  "schema_version": "1.0",
  "source": {
    "id": "gr-qc/0508100",
    "kind": "arxiv",
    "version": 3
  }
}