Pith Number

pith:ZZVJEWPG

pith:2011:ZZVJEWPGNFQMB2O6RGQG42SWQL

not attested not anchored not stored refs pending

Spitzer Infrared Spectrograph survey of young stars in the Chamaeleon I star-forming region

B. A. Sargent, C. Bohac, C. Espaillat, D. M. Watson, E. Furlan, J. D. Green, J. R. Najita, K. H. Kim, K. L. Luhman, L. A. Arnold, L. Adame, M. K. McClure, N. Calvet, P. D'Alessio, P. Manoj, W. J. Forrest

arxiv:1101.4226 v1 · 2011-01-21 · 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{ZZVJEWPGNFQMB2O6RGQG42SWQL}

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	2026-05-18T02:03:25.480932Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ce6a9259e66960c0e9de89a06e6a5682f8bc5e683f83aaec38b849e89a504bab

Aliases

arxiv: 1101.4226 · arxiv_version: 1101.4226v1 · doi: 10.48550/arxiv.1101.4226 · pith_short_12: ZZVJEWPGNFQM · pith_short_16: ZZVJEWPGNFQMB2O6 · pith_short_8: ZZVJEWPG

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/ZZVJEWPGNFQMB2O6RGQG42SWQL \
  | 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: ce6a9259e66960c0e9de89a06e6a5682f8bc5e683f83aaec38b849e89a504bab

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c6f1e61d1ad4cf5fcd69c1b61067738361edb81dd6090311040be874a1232920",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2011-01-21T20:31:10Z",
    "title_canon_sha256": "bed94e5e9cb905365ae9432b05feb7a17a3013c6fff7c74c2f9da091e792aee8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1101.4226",
    "kind": "arxiv",
    "version": 1
  }
}