pith. sign in
Pith Number

pith:WYXBT664

pith:2014:WYXBT664KXFIB37M6BE36DLLH3
not attested not anchored not stored refs pending

Photon-photon interactions can be a source of CMB circular polarization

R. F. Sawyer

arxiv:1408.5434 v2 · 2014-08-22 · astro-ph.CO

Add to your LaTeX paper
\usepackage{pith}
\pithnumber{WYXBT664KXFIB37M6BE36DLLH3}

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 2026-05-18T02:31:59.512627Z
Builder pith-number-builder-2026-05-17-v1
Signature Pith Ed25519 (pith-v1-2026-05) · public key
Schema pith-number/v1.0

Canonical hash

b62e19fbdc55ca80efecf049bf0d6b3ec33325bff97a21367c18ea916b1abb5b

Aliases

arxiv: 1408.5434 · arxiv_version: 1408.5434v2 · doi: 10.48550/arxiv.1408.5434 · pith_short_12: WYXBT664KXFI · pith_short_16: WYXBT664KXFIB37M · pith_short_8: WYXBT664
Agent API
Verify this Pith Number yourself
curl -sH 'Accept: application/ld+json' https://pith.science/pith/WYXBT664KXFIB37M6BE36DLLH3 \
  | 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: b62e19fbdc55ca80efecf049bf0d6b3ec33325bff97a21367c18ea916b1abb5b
Canonical record JSON
{
  "metadata": {
    "abstract_canon_sha256": "a3ece3131b0abe25610db91318d7d946ebea31409f077da342876e6342da40b2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2014-08-22T21:28:17Z",
    "title_canon_sha256": "40cfeca5999d52191796047ca9f6fc5b26d69f9c118b44f597aa44ea9372d151"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1408.5434",
    "kind": "arxiv",
    "version": 2
  }
}