Pith Number

pith:KVVFQ4GU

pith:2016:KVVFQ4GU6QA3KLSGZ5TBOVEQOM

not attested not anchored not stored refs pending

Probing the origin of our universe through primordial gravitational waves by Ali CMB project

Xinmin Zhang, Yi-Fu Cai

arxiv:1605.01840 v2 · 2016-05-06 · astro-ph.IM · astro-ph.CO · gr-qc · hep-th

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{KVVFQ4GU6QA3KLSGZ5TBOVEQOM}

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	2026-05-18T01:14:54.712023Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

556a5870d4f401b52e46cf6617549073118f8dc8378957cd3d1353a5e8cfd41d

Aliases

arxiv: 1605.01840 · arxiv_version: 1605.01840v2 · doi: 10.48550/arxiv.1605.01840 · pith_short_12: KVVFQ4GU6QA3 · pith_short_16: KVVFQ4GU6QA3KLSG · pith_short_8: KVVFQ4GU

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/KVVFQ4GU6QA3KLSGZ5TBOVEQOM \
  | 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: 556a5870d4f401b52e46cf6617549073118f8dc8378957cd3d1353a5e8cfd41d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1172d17c6b5cc14cc735401b0350c294ab66b0de9d63e8beeb3fc9c7c63055db",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "gr-qc",
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2016-05-06T06:56:13Z",
    "title_canon_sha256": "d9c357dbc74972c3b13aea055ddd5dd521100c54da0c102b6b14f07a0f4fef97"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1605.01840",
    "kind": "arxiv",
    "version": 2
  }
}