Pith Number

pith:6EK5BIV6

pith:2021:6EK5BIV6LD4AGTNHXNUKUSAZM3

not attested not anchored not stored refs pending

Efficiency of the oxygenic photosynthesis on Earth-like planets in the habitable zone

Giovanni Covone, Laura Inno, Luca Cacciapuoti, Riccardo M. Ienco

arxiv:2104.01425 v1 · 2021-04-03 · 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{6EK5BIV6LD4AGTNHXNUKUSAZM3}

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	2026-07-05T02:43:21.456360Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f115d0a2be58f8034da7bb68aa481966e794bb6d94e5daa6737986706917e2da

Aliases

arxiv: 2104.01425 · arxiv_version: 2104.01425v1 · doi: 10.48550/arxiv.2104.01425 · pith_short_12: 6EK5BIV6LD4A · pith_short_16: 6EK5BIV6LD4AGTNH · pith_short_8: 6EK5BIV6

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/6EK5BIV6LD4AGTNHXNUKUSAZM3 \
  | 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: f115d0a2be58f8034da7bb68aa481966e794bb6d94e5daa6737986706917e2da

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "43434d0922d164620e8b1869dfb0684520d3a4b9e402a1bd90973f71ee0a5467",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2021-04-03T15:01:11Z",
    "title_canon_sha256": "50ce191919a221f6456c429e0f83304bab7f0f950676e526dbf0581f0f7d0098"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2104.01425",
    "kind": "arxiv",
    "version": 1
  }
}