Pith Number

pith:PP3TFHXW

pith:2009:PP3TFHXWSZLZIHB2NG4HHR54T6

not attested not anchored not stored refs pending

Deuterium chemistry in protoplanetary disks II The inner 30 AU

K. Willacy, P. Woods

arxiv:0908.1114 v1 · 2009-08-07 · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PP3TFHXWSZLZIHB2NG4HHR54T6}

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	2026-05-18T02:12:36.533698Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7bf7329ef69657941c3a69b873c7bc9f963c09efb81e86b25fd75fa3afae2401

Aliases

arxiv: 0908.1114 · arxiv_version: 0908.1114v1 · doi: 10.48550/arxiv.0908.1114 · pith_short_12: PP3TFHXWSZLZ · pith_short_16: PP3TFHXWSZLZIHB2 · pith_short_8: PP3TFHXW

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/PP3TFHXWSZLZIHB2NG4HHR54T6 \
  | 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: 7bf7329ef69657941c3a69b873c7bc9f963c09efb81e86b25fd75fa3afae2401

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e6b16dd548ba24ef1f2ee4b696864a425094fef17744999f21b74638e890b4b4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2009-08-07T20:13:12Z",
    "title_canon_sha256": "f50ef9ce9c8811b512976b80a948a8480ab4969c9791fc7095a3712e8543bd75"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0908.1114",
    "kind": "arxiv",
    "version": 1
  }
}