Pith Number

pith:PBJ7IBBY

pith:2012:PBJ7IBBYUDMAZJ2ESECYCXCV4G

not attested not anchored not stored refs pending

The warm gas atmosphere of the HD 100546 disk seen by Herschel (Evidence of a gas-rich, carbon-poor atmosphere?)

Ewine F. van Dishoeck, Gregory J. Herczeg, Simon Bruderer, Steven D. Doty

arxiv:1201.4860 v1 · 2012-01-23 · 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{PBJ7IBBYUDMAZJ2ESECYCXCV4G}

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	2026-05-18T01:58:43.162403Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7853f40438a0d80ca7449105815c55e19d69b2cc9435251f259a236b0fe5d3ac

Aliases

arxiv: 1201.4860 · arxiv_version: 1201.4860v1 · doi: 10.48550/arxiv.1201.4860 · pith_short_12: PBJ7IBBYUDMA · pith_short_16: PBJ7IBBYUDMAZJ2E · pith_short_8: PBJ7IBBY

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/PBJ7IBBYUDMAZJ2ESECYCXCV4G \
  | 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: 7853f40438a0d80ca7449105815c55e19d69b2cc9435251f259a236b0fe5d3ac

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fd776e3b1af5cc3be267d193de914736f502d77d6d479b0a91ca7041c7752e55",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2012-01-23T21:00:04Z",
    "title_canon_sha256": "eca2effe45176d3aae3c9f6cddf7baa4c9776b19f0cc1f924b4f16d2d2011003"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1201.4860",
    "kind": "arxiv",
    "version": 1
  }
}