Pith Number

pith:MBBJ6AZ3

pith:2007:MBBJ6AZ3RAVZDYOJBSKPI6FU2U

not attested not anchored not stored refs pending

c2d Spitzer IRS Spectra of Disks around T Tauri Stars. III. [Ne II], [Fe I], and H_2 gas-phase lines

Ewine F. van Dishoeck, Fred Lahuis, Geoffrey A. Blake, Jacqueline E. Kessler-Silacci, Klaus M. Pontoppidan, Neal J. Evans II

arxiv:0704.2305 v2 · 2007-04-18 · 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{MBBJ6AZ3RAVZDYOJBSKPI6FU2U}

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.

Cited by

1 paper in Pith

From Young to Older Disks: JWST/MIRI Evidence for Fading Molecular Emission and Hints for Elevated C/O in Upper Scorpius

Receipt and verification

First computed	2026-07-04T15:44:14.935172Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

60429f033b882b91e1c90c94f478b4d50c23f416b2559db70a2f7264ea8a1400

Aliases

arxiv: 0704.2305 · arxiv_version: 0704.2305v2 · doi: 10.48550/arxiv.0704.2305 · pith_short_12: MBBJ6AZ3RAVZ · pith_short_16: MBBJ6AZ3RAVZDYOJ · pith_short_8: MBBJ6AZ3

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/MBBJ6AZ3RAVZDYOJBSKPI6FU2U \
  | 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: 60429f033b882b91e1c90c94f478b4d50c23f416b2559db70a2f7264ea8a1400

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6da5c58944a91538390c4bdc508a92ce97105f4c9e4af3d2de87883e572b3847",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2007-04-18T09:49:43Z",
    "title_canon_sha256": "133669216ca2777785f2b216098d32c17e81ed2dfd44c835dce5edbdc9a8a71e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0704.2305",
    "kind": "arxiv",
    "version": 2
  }
}