Pith Number

pith:ATUXK7PE

pith:2009:ATUXK7PEX2V32AF53Y7EQU3QS3

not attested not anchored not stored refs pending

New constraints on the delivery of cometary water and nitrogen to Earth from the 15N/14N isotopic ratio

C. Arpigny, D. Hutsemekers, E. Jehin, J. Manfroid

arxiv:0906.5221 v1 · 2009-06-29 · 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{ATUXK7PEX2V32AF53Y7EQU3QS3}

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	2026-05-18T02:13:12.082310Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

04e9757de4beabbd00bdde3e48537096d6fba12ce7d05dd61d48f870a74285bc

Aliases

arxiv: 0906.5221 · arxiv_version: 0906.5221v1 · doi: 10.48550/arxiv.0906.5221 · pith_short_12: ATUXK7PEX2V3 · pith_short_16: ATUXK7PEX2V32AF5 · pith_short_8: ATUXK7PE

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/ATUXK7PEX2V32AF53Y7EQU3QS3 \
  | 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: 04e9757de4beabbd00bdde3e48537096d6fba12ce7d05dd61d48f870a74285bc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "21ca9ce0608d3166f231147d617aaba634f1c9555bbdfd340b993e1753b70aa1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2009-06-29T08:40:19Z",
    "title_canon_sha256": "4763215f020a7fe697e81cceb8aa703c54d51e61987a83f01ad229d6fc4c01bc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0906.5221",
    "kind": "arxiv",
    "version": 1
  }
}