Pith Number

pith:6MO2NTLR

pith:2021:6MO2NTLRIMUHQM3CRPRH3WI7PZ

not attested not anchored not stored refs pending

The future lifespan of Earth's oxygenated Atmosphere

C. Reinhard, K. Ozaki

arxiv:2103.02694 v1 · 2021-03-03 · astro-ph.EP · physics.ao-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{6MO2NTLRIMUHQM3CRPRH3WI7PZ}

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	2026-07-05T02:20:20.085171Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f31da6cd7143287833628be27dd91f7e59bd61e658e712c2d0e4221298d3ae44

Aliases

arxiv: 2103.02694 · arxiv_version: 2103.02694v1 · doi: 10.48550/arxiv.2103.02694 · pith_short_12: 6MO2NTLRIMUH · pith_short_16: 6MO2NTLRIMUHQM3C · pith_short_8: 6MO2NTLR

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/6MO2NTLRIMUHQM3CRPRH3WI7PZ \
  | 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: f31da6cd7143287833628be27dd91f7e59bd61e658e712c2d0e4221298d3ae44

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "960d93bb90117c7887a5301201ada14e1e2d96220944177bea03b7f2ad475c10",
    "cross_cats_sorted": [
      "physics.ao-ph"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2021-03-03T21:26:46Z",
    "title_canon_sha256": "3970967e057046de00d7a1a7755921077bd520ea319fbee2c07f96e894cd1b25"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2103.02694",
    "kind": "arxiv",
    "version": 1
  }
}