Pith Number

pith:7CCLWJPN

pith:2012:7CCLWJPNSDQC7BIM3BJ72SEV6A

not attested not anchored not stored refs pending

Herschel measurements of the D/H and 16O/18O ratios in water in the Oort-cloud comet C/2009 P1 (Garradd)

B. Swinyard, C. Jarchow, D. Bockel\'ee-Morvan, D. C. Lis, D. Naylor, E. Lellouch, G. A. Blake, G. R. Davis, H. Walker, J. Crovisier, M. de Val-Borro, M. Emprechtinger, M. Kidger, M. K\"uppers, M. Rengel, N. Biver, P. Hartogh, R. Courtin, R. Moreno, S. Sidher, S. Szutowicz, T. Fulton

arxiv:1207.7180 v1 · 2012-07-31 · 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{7CCLWJPNSDQC7BIM3BJ72SEV6A}

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	2026-05-18T01:56:00.828993Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f884bb25ed90e02f850cd853fd4895f00ea2159666aed9733413f95e6fd81af8

Aliases

arxiv: 1207.7180 · arxiv_version: 1207.7180v1 · doi: 10.48550/arxiv.1207.7180 · pith_short_12: 7CCLWJPNSDQC · pith_short_16: 7CCLWJPNSDQC7BIM · pith_short_8: 7CCLWJPN

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/7CCLWJPNSDQC7BIM3BJ72SEV6A \
  | 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: f884bb25ed90e02f850cd853fd4895f00ea2159666aed9733413f95e6fd81af8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "40f38cee38a42b037897166f3304fb5ea107746b55e24c079925b90eb45c1121",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2012-07-31T08:02:17Z",
    "title_canon_sha256": "6634c3bf09e89d659798a3a205c8629cc8a41fe0b6fd0a7214ab5669d3bd4f52"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1207.7180",
    "kind": "arxiv",
    "version": 1
  }
}