Pith Number

pith:GUCYU2T4

pith:2009:GUCYU2T4VEKHXQWFAYCWJQOY7D

not attested not anchored not stored refs pending

Near Infrared polarimetry of a sample of YSOs

2), (2) IAG-USP, (3) ICE (CSIC- IEEC), (4) Instituto Nacional de Pesquisas Espaciais/MCT), A. M. Magalhaes (2), A. Pereyra (1, C. V. Rodrigues (4), F. X. de Araujo (1) ((1) Observatorio Nacional, J. M. Girart (3)

arxiv:0903.4212 v1 · 2009-03-24 · 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{GUCYU2T4VEKHXQWFAYCWJQOY7D}

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	2026-05-18T02:14:26.110023Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

35058a6a7ca9147bc2c5060564c1d8f8c89f02311a7b7b15d16f6cac086818e9

Aliases

arxiv: 0903.4212 · arxiv_version: 0903.4212v1 · doi: 10.48550/arxiv.0903.4212 · pith_short_12: GUCYU2T4VEKH · pith_short_16: GUCYU2T4VEKHXQWF · pith_short_8: GUCYU2T4

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/GUCYU2T4VEKHXQWFAYCWJQOY7D \
  | 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: 35058a6a7ca9147bc2c5060564c1d8f8c89f02311a7b7b15d16f6cac086818e9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "342dca1041fa901c544dadcfdbacc21557843b5cd296c514110f8181a22d34dc",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2009-03-24T22:26:09Z",
    "title_canon_sha256": "f94c6ff8342290a560cb5778a2feff886de26c6947bf5b5259afa29e2b06f6a5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0903.4212",
    "kind": "arxiv",
    "version": 1
  }
}