Pith Number

pith:U2V35WAR

pith:2012:U2V35WARZR7GZKW4RAN64U6ULH

not attested not anchored not stored refs pending

SOUTH POL: Revealing the Polarized Southern Sky

A. Carciofi, A. L. Gomes, A. M. Magalhaes, A. Pereyra, C. Fernandez, C. M. de Oliveira, C. V. Rodrigues, D. B. Seriacopi, E. M. G. Dal Pino, K. Taylor, L. Marrara, M. Diaz, M. S. Rubinho, N. L. Ribeiro, R. Costa, T. Ferrari

arxiv:1201.3639 v1 · 2012-01-17 · astro-ph.IM · astro-ph.CO · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{U2V35WARZR7GZKW4RAN64U6ULH}

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	2026-05-18T01:58:47.820293Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a6abbed811cc7e6caadc881bee53d459c5dfeb703485668e4bbabc400a99438a

Aliases

arxiv: 1201.3639 · arxiv_version: 1201.3639v1 · doi: 10.48550/arxiv.1201.3639 · pith_short_12: U2V35WARZR7G · pith_short_16: U2V35WARZR7GZKW4 · pith_short_8: U2V35WAR

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/U2V35WARZR7GZKW4RAN64U6ULH \
  | 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: a6abbed811cc7e6caadc881bee53d459c5dfeb703485668e4bbabc400a99438a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "87d0600e4c07f1ba3ce9ddff6aa8d74fb9fa38ba2aa22d51ac2b824e10dec325",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2012-01-17T21:33:52Z",
    "title_canon_sha256": "ef0a3229d3bd1f56b5913b346f38536f21277e8b2c1495ceeae8fe654a3bc264"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1201.3639",
    "kind": "arxiv",
    "version": 1
  }
}