Pith Number

pith:B6NHCEXX

pith:2012:B6NHCEXX5WGZLINC7C4VRHKOJO

not attested not anchored not stored refs pending

Rethinking the Paleoproterozoic Great Oxidation Event: A Biological Perspective

CA, John W. Grula (Observatories of the Carnegie Institution for Science, Pasadena, USA)

arxiv:1203.6701 v1 · 2012-03-30 · astro-ph.EP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{B6NHCEXX5WGZLINC7C4VRHKOJO}

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	2026-05-18T03:59:00.950536Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0f9a7112f7ed8d95a1a2f8b9589d4e4b81b29a1497cc3285e1820b031f9b0b4e

Aliases

arxiv: 1203.6701 · arxiv_version: 1203.6701v1 · doi: 10.48550/arxiv.1203.6701 · pith_short_12: B6NHCEXX5WGZ · pith_short_16: B6NHCEXX5WGZLINC · pith_short_8: B6NHCEXX

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/B6NHCEXX5WGZLINC7C4VRHKOJO \
  | 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: 0f9a7112f7ed8d95a1a2f8b9589d4e4b81b29a1497cc3285e1820b031f9b0b4e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d0f8a9ea45b3c7f3c2e449ec568ad9c02eb93a8c1a8695052fdf219de17de3e6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2012-03-30T02:38:51Z",
    "title_canon_sha256": "0c3d147e49b53e74abdb69f40fcedfaa719a77eed1eaabe4c846b99d6e3e0557"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1203.6701",
    "kind": "arxiv",
    "version": 1
  }
}