Pith Number

pith:I5YUG3UK

pith:2012:I5YUG3UKWBUFSYUG74RGCTMXP4

not attested not anchored not stored refs pending

Substellar-Mass Condensations in Prestellar Cores

Fumitaka Nakamura (NAOJ), Ryohei Kawabe (NAOJ), Shigehisa Takakuwa (ASIAA)

arxiv:1209.3801 v1 · 2012-09-17 · 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{I5YUG3UKWBUFSYUG74RGCTMXP4}

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	2026-05-18T01:54:27.138926Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4771436e8ab068596286ff22614d977f0bbda2d2e71d59945d66912b8ad7dff2

Aliases

arxiv: 1209.3801 · arxiv_version: 1209.3801v1 · doi: 10.48550/arxiv.1209.3801 · pith_short_12: I5YUG3UKWBUF · pith_short_16: I5YUG3UKWBUFSYUG · pith_short_8: I5YUG3UK

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/I5YUG3UKWBUFSYUG74RGCTMXP4 \
  | 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: 4771436e8ab068596286ff22614d977f0bbda2d2e71d59945d66912b8ad7dff2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f716493bad3e1c4fff024cda8e822bd84eeeab4ba19abfb38d1d75d046838b20",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2012-09-17T21:25:52Z",
    "title_canon_sha256": "fb3150c8b0b6f3933279b2f637ce56d2625dd741dda98cc94aad7e081ec3823f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1209.3801",
    "kind": "arxiv",
    "version": 1
  }
}