Pith Number

pith:EYSYAVJR

pith:2004:EYSYAVJRVFEWWIQXRY67PTSKQY

not attested not anchored not stored refs pending

Massive star formation and tidal structures in HCG 31

Angel R. L\'opez-S\'anchez, C\'esar Esteban, M\'onica Rodr\'iguez

arxiv:astro-ph/0403182 v2 · 2004-03-08 · 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{EYSYAVJRVFEWWIQXRY67PTSKQY}

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	2026-05-18T01:09:03.334656Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2625805531a9496b22178e3df7ce4a862e4e9ce92e12329497441e99bb8269ef

Aliases

arxiv: astro-ph/0403182 · arxiv_version: astro-ph/0403182v2 · doi: 10.48550/arxiv.astro-ph/0403182 · pith_short_12: EYSYAVJRVFEW · pith_short_16: EYSYAVJRVFEWWIQX · pith_short_8: EYSYAVJR

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/EYSYAVJRVFEWWIQXRY67PTSKQY \
  | 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: 2625805531a9496b22178e3df7ce4a862e4e9ce92e12329497441e99bb8269ef

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e63836cd128a45b32cbd6a0882a75d7d2e5669711bc086c07e02491a750ddd6d",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2004-03-08T14:05:20Z",
    "title_canon_sha256": "8de95c3564946a876e4ccd41092a7060ad0ac7aa4bc69ea9be4b631f79a50e0e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0403182",
    "kind": "arxiv",
    "version": 2
  }
}