Pith Number

pith:SEC4HTUM

pith:2008:SEC4HTUM5PEQUDTHU3XUMMCLZ2

not attested not anchored not stored refs pending

Detection of CI in absorption towards PKS 1830-211 with the eSMA

1), (2) Harvard-Smithsonian Center for Astrophysics, 3), (3) Max-Planck-Institut fuer extraterrestrische Physik, (4) Caltech Submillimeter Observatory, (5) Joint Astronomy Center, 6), (6) Netherlands Organisation for Scientific Research, (7) Joint Institute for VLBI in Europe, (8) Harvard-Smithsonian Center for Astrophysics, A. Meredith Hughes (2), David J. Wilner (2), Ewine F. van Dishoeck (1, Hiroko Shinnaga (4), Hiroshige Yoshida (4) ((1) Leiden Observatory, Huib Jan van Langevelde (7, Ken H. Young (2), Leiden University, Mark A. Gurwell (2), Michiel R. Hogerheijde (1), Remo P.J. Tilanus (5, Richard Chamberlin (4), Robert D. Christensen (8), Sandrine Bottinelli (1), Submillimeter Array)

arxiv:0811.3944 v1 · 2008-11-24 · 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{SEC4HTUM5PEQUDTHU3XUMMCLZ2}

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	2026-05-18T02:15:13.332792Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9105c3ce8cebc90a0e67a6ef46304bcebea853a7950f6d3906a9bf7eada31bce

Aliases

arxiv: 0811.3944 · arxiv_version: 0811.3944v1 · doi: 10.48550/arxiv.0811.3944 · pith_short_12: SEC4HTUM5PEQ · pith_short_16: SEC4HTUM5PEQUDTH · pith_short_8: SEC4HTUM

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/SEC4HTUM5PEQUDTHU3XUMMCLZ2 \
  | 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: 9105c3ce8cebc90a0e67a6ef46304bcebea853a7950f6d3906a9bf7eada31bce

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4653079de03b0dee792c0f5af9c6b9d1f392e39c2ea39e28b3fcc7e8c1136150",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-11-24T19:06:48Z",
    "title_canon_sha256": "cc0c08d431fd39b43f42ffc2a765e509cac19777515fa773b73860f38e4b3995"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0811.3944",
    "kind": "arxiv",
    "version": 1
  }
}