Pith Number

pith:7R6RPRTY

pith:2009:7R6RPRTYYBQMG6LH2LOP2Z5DXW

not attested not anchored not stored refs pending

Structural Parameters of Stellar Disks from 2MASS Images of Edge-on Galaxies

Dmitry Bizyaev (APO/Nmsu, SAI MSU), Sofia Mitronova (SAO Ras)

arxiv:0907.3472 v1 · 2009-07-20 · astro-ph.CO · 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{7R6RPRTYYBQMG6LH2LOP2Z5DXW}

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	2026-05-18T02:12:55.437894Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fc7d17c678c060c37967d2dcfd67a3bda6e3efc255e9f66ea0f75a381ea1fca2

Aliases

arxiv: 0907.3472 · arxiv_version: 0907.3472v1 · doi: 10.48550/arxiv.0907.3472 · pith_short_12: 7R6RPRTYYBQM · pith_short_16: 7R6RPRTYYBQMG6LH · pith_short_8: 7R6RPRTY

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/7R6RPRTYYBQMG6LH2LOP2Z5DXW \
  | 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: fc7d17c678c060c37967d2dcfd67a3bda6e3efc255e9f66ea0f75a381ea1fca2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8faf23a8fe1f98adc5c752e006651b06f9965991cce92fca2a0b9e9b66a667bc",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-07-20T19:39:09Z",
    "title_canon_sha256": "d516831e4b6e54c1793708161bafb3e69695aee5f9eb1f664687da4389016f8b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0907.3472",
    "kind": "arxiv",
    "version": 1
  }
}