Pith Number

pith:KUAFAL4O

pith:2009:KUAFAL4OANZNEUFYA5563TBWSS

not attested not anchored not stored refs pending

A complete 12CO 2--1 map of M51 with HERA: II. Total gas surface densities and gravitational stability

2), C. Kramer (1, France; (4) Observatorio de Madrid, Germany; (2) IRAM Granada, I. Physikalisches Institut, J. Stutzki (1) ((1) KOSMA, K.F. Schuster (3), M. Hitschfeld (1), S. Garcia-Burillo (4), Spain), Spain; (3) IRAM Grenoble, Universitaet zu Koeln

arxiv:0901.1601 v1 · 2009-01-12 · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{KUAFAL4OANZNEUFYA5563TBWSS}

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	2026-07-04T17:14:03.103844Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5500502f8e0372d250b8077bedcc36949491bb4ce6cd005391586dab194b64b8

Aliases

arxiv: 0901.1601 · arxiv_version: 0901.1601v1 · doi: 10.48550/arxiv.0901.1601 · pith_short_12: KUAFAL4OANZN · pith_short_16: KUAFAL4OANZNEUFY · pith_short_8: KUAFAL4O

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/KUAFAL4OANZNEUFYA5563TBWSS \
  | 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: 5500502f8e0372d250b8077bedcc36949491bb4ce6cd005391586dab194b64b8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "662d14d8e18b255dcca52a562e5bb9a65cd9f420dc6520acec9f75141b38ab85",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2009-01-12T15:56:15Z",
    "title_canon_sha256": "633c1896c1ad08d68fcef1260a6d3824e8a3f1bdc33ba2bdec5d85f71f8aa0b4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0901.1601",
    "kind": "arxiv",
    "version": 1
  }
}