Pith Number

pith:SQ57VVEX

pith:2008:SQ57VVEXRDHSBLGUX3VVIKRXYS

not attested not anchored not stored refs pending

Near-infrared reddening of extra-galactic GMCs in a face-on geometry

Joao Alves, Jouni Kainulainen, Mika Juvela

arxiv:0802.1321 v2 · 2008-02-10 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SQ57VVEXRDHSBLGUX3VVIKRXYS}

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	2026-07-04T17:09:14.407323Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

943bfad49788cf20acd4beeb542a37c4821fa4b3e9d929d8037b1eae619cdb3e

Aliases

arxiv: 0802.1321 · arxiv_version: 0802.1321v2 · doi: 10.48550/arxiv.0802.1321 · pith_short_12: SQ57VVEXRDHS · pith_short_16: SQ57VVEXRDHSBLGU · pith_short_8: SQ57VVEX

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/SQ57VVEXRDHSBLGUX3VVIKRXYS \
  | 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: 943bfad49788cf20acd4beeb542a37c4821fa4b3e9d929d8037b1eae619cdb3e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cac1aee330765b8fd95155e908bc8a6c3ef09860cb5269f3f4bd5c1a90e1608c",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-02-10T14:05:21Z",
    "title_canon_sha256": "3fc4cf68b1ce5500343e544d844f572d3de5dbd819677e55c4867f09ad2c8986"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0802.1321",
    "kind": "arxiv",
    "version": 2
  }
}