Pith Number

pith:P3AM3FM3

pith:2012:P3AM3FM3BIMRCHTO35NW4LGPQX

not attested not anchored not stored refs pending

NSF 2.0: A spin weight zero formulation of General Relativity

Alejandra Rojas, Carlos Kozameh, Melina Bordcoch

arxiv:1201.1655 v2 · 2012-01-08 · gr-qc

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{P3AM3FM3BIMRCHTO35NW4LGPQX}

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	2026-05-18T04:04:32.781709Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7ec0cd959b0a19111e6edf5b6e2ccf85ccfb523285b90c49db8461ed527cbad1

Aliases

arxiv: 1201.1655 · arxiv_version: 1201.1655v2 · doi: 10.48550/arxiv.1201.1655 · pith_short_12: P3AM3FM3BIMR · pith_short_16: P3AM3FM3BIMRCHTO · pith_short_8: P3AM3FM3

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/P3AM3FM3BIMRCHTO35NW4LGPQX \
  | 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: 7ec0cd959b0a19111e6edf5b6e2ccf85ccfb523285b90c49db8461ed527cbad1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a66d53b93d7c4b824cfa750eff22183b8c957fc5992af9be11ae44a96d45db0f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2012-01-08T20:15:47Z",
    "title_canon_sha256": "44b2ef279489196d471335443a3aa293b286e17fdd2d1de7d53c55996edbd77b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1201.1655",
    "kind": "arxiv",
    "version": 2
  }
}