Pith Number

pith:XZI7PS22

pith:2008:XZI7PS22T4U7RO6M36Y4FP6SJ2

not attested not anchored not stored refs pending

Chemical and thermal structure of protoplanetary disks as observed with ALMA

D. Semenov (1), Germany), Heidelberg, R. Launhardt (1) ((1) Max Planck Institute for Astronomy, S. Wolf (1), Th. Henning (1), Ya. Pavlyuchenkov (1)

arxiv:0801.1463 v1 · 2008-01-09 · astro-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{XZI7PS22T4U7RO6M36Y4FP6SJ2}

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	2026-07-04T17:08:23.421001Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

be51f7cb5a9f29f8bbccdfb1c2bfd24ebf3887ae80e6b8fbed3a3bf7527ded1e

Aliases

arxiv: 0801.1463 · arxiv_version: 0801.1463v1 · doi: 10.48550/arxiv.0801.1463 · pith_short_12: XZI7PS22T4U7 · pith_short_16: XZI7PS22T4U7RO6M · pith_short_8: XZI7PS22

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/XZI7PS22T4U7RO6M36Y4FP6SJ2 \
  | 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: be51f7cb5a9f29f8bbccdfb1c2bfd24ebf3887ae80e6b8fbed3a3bf7527ded1e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "587606caf9c75e7793bddd0c16ec2eb1329787d145e26ea25b9d01bcd134e102",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-01-09T16:43:41Z",
    "title_canon_sha256": "2b7343a7646e2e23928d75944eb4ae8ff69ef3e168d72f7be253f45e8db34c4f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0801.1463",
    "kind": "arxiv",
    "version": 1
  }
}