Pith Number

pith:M7C4DGJI

pith:2012:M7C4DGJIYELZ4GU3C53RBF7MYA

not attested not anchored not stored refs pending

Cosmology and Science Education: Problems and Promises

Helge Kragh

arxiv:1212.1592 v1 · 2012-12-07 · physics.hist-ph · physics.ed-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{M7C4DGJIYELZ4GU3C53RBF7MYA}

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	2026-05-18T03:38:56.850460Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

67c5c19928c1179e1a9b17771097ecc030ca52e6752a5235b3824867662950ed

Aliases

arxiv: 1212.1592 · arxiv_version: 1212.1592v1 · doi: 10.48550/arxiv.1212.1592 · pith_short_12: M7C4DGJIYELZ · pith_short_16: M7C4DGJIYELZ4GU3 · pith_short_8: M7C4DGJI

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/M7C4DGJIYELZ4GU3C53RBF7MYA \
  | 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: 67c5c19928c1179e1a9b17771097ecc030ca52e6752a5235b3824867662950ed

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1da5e4b179511defef7fb4d186f3a7adc052c26c4382c3d13015599fcbea2333",
    "cross_cats_sorted": [
      "physics.ed-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.hist-ph",
    "submitted_at": "2012-12-07T12:33:05Z",
    "title_canon_sha256": "375c6873c3254e877c09a66ad1ad7e1fa73ee9ad8a83b381a84878a6bb052c8e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1212.1592",
    "kind": "arxiv",
    "version": 1
  }
}