Pith Number

pith:NDLRCZQU

pith:2013:NDLRCZQUVKQFQQ4FXCMHDJBH2N

not attested not anchored not stored refs pending

A Study of starless dark cloud LDN 1570: Distance, Dust properties and Magnetic field geometry

A. K. Pandey, A. N. Ramaprakash, C. Eswaraiah, G. Maheswar, H. C. Bhatt, J. Jose

arxiv:1305.5035 v1 · 2013-05-22 · astro-ph.SR · 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{NDLRCZQUVKQFQQ4FXCMHDJBH2N}

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	2026-05-18T01:49:48.002175Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

68d7116614aaa0584385b89871a427d356e89c4abbe9bf49b825cc69171a5f1f

Aliases

arxiv: 1305.5035 · arxiv_version: 1305.5035v1 · doi: 10.48550/arxiv.1305.5035 · pith_short_12: NDLRCZQUVKQF · pith_short_16: NDLRCZQUVKQFQQ4F · pith_short_8: NDLRCZQU

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/NDLRCZQUVKQFQQ4FXCMHDJBH2N \
  | 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: 68d7116614aaa0584385b89871a427d356e89c4abbe9bf49b825cc69171a5f1f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d244a51b8c0fdabb1afda96e8fe1ae881c49d644c6e299800c4baca386e3b330",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2013-05-22T07:14:40Z",
    "title_canon_sha256": "918ded36d50daca25ca1860672f4ade2e6b489731da4c914d83fb6be0bf722c5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1305.5035",
    "kind": "arxiv",
    "version": 1
  }
}