Pith Number

pith:PNP2IVOS

pith:2011:PNP2IVOSV272727PYYRC56BDDY

not attested not anchored not stored refs pending

Analog cosmology with spinor BECs

Esteban Calzetta

arxiv:1111.5261 v2 · 2011-11-22 · gr-qc · cond-mat.quant-gas

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PNP2IVOSV272727PYYRC56BDDY}

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	2026-05-18T03:49:10.369732Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7b5fa455d2aebfafebefc6222ef8231e3961e7ab4267b60a46c7b1d63f16c885

Aliases

arxiv: 1111.5261 · arxiv_version: 1111.5261v2 · doi: 10.48550/arxiv.1111.5261 · pith_short_12: PNP2IVOSV272 · pith_short_16: PNP2IVOSV272727P · pith_short_8: PNP2IVOS

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/PNP2IVOSV272727PYYRC56BDDY \
  | 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: 7b5fa455d2aebfafebefc6222ef8231e3961e7ab4267b60a46c7b1d63f16c885

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "536e000212eebea378681f5f60a03c32fc773a8436a7b90651dfc2bd5fb61782",
    "cross_cats_sorted": [
      "cond-mat.quant-gas"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2011-11-22T17:42:04Z",
    "title_canon_sha256": "30c0cf3395232d660863a00cfa49c1119249ed162deb467aa5f338ab617929c3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1111.5261",
    "kind": "arxiv",
    "version": 2
  }
}