Cycle 61 Operations: Agent Maritime (Amihan)

Suite: Butuan Polities (cycles 61–64) Role this cycle: INTAKE (Cycle 62 lead) Workflow: A — supporting Tala’s corpus assembly

Maritime Sources Logged for Cycle 62

From the dossier and workspace primaries, I have flagged the following claims that fall within my Cycle 62 verification scope:

1. Nine to eleven balangay vessels at Libertad/Ambangan/Bancasi. Boat 1 (320 CE / 777–988); Boat 2 (689–940); Boat 4 (775–973); Boat 5 (776–971); Boat 9 / “Mother Boat” (773–968) — dossier §7. Need: independent radiocarbon recalibration; assessment of whether Boat 1’s 320 CE outlier is genuine or contamination.
2. Lashed-lug construction tradition. Edge-to-edge plank joining with wooden dowels lashed to internal ribs through carved lugs. Austronesian standard. Need: Manguin’s regional typology to place the Butuan boats in their broader Southeast Asian shipbuilding family.
3. Mother Boat ~25m length. If confirmed, implies cargo-carrying capacity sufficient for direct Butuan-China voyages, not just feeder runs to Champa or Sri Vijaya entrepôts. Need: comparative beam-to-length ratio; capacity estimate.
4. Wood species identifications. Doongan (Heritiera littoralis), toog (Petersianthus quadrialatus), narra (Pterocarpus indicus). All locally-sourced lowland-Mindanao hardwoods. Need: ecological note on the resource base this implies — proximity of mature hardwood stands to a working shipyard.
5. Songshi tributary route logistics, 1001–1011. Pu-tuan envoys arrive at Quanzhou (then the dominant Song-era international port) with bulk gold, parrots, camphor, cloves. Need: monsoon-window analysis (NE monsoon Oct–Jan for Mindanao→South China; SW monsoon May–Aug for the return), comparison with the Sulu-Quanzhou route I previously mapped in Cycle 56.
6. Champa connection (envoy I-hsü-han, 1011). A Cham-named envoy on a Pu-tuan mission implies either (a) Butuan hired professional Cham diplomats, or (b) Butuan had a resident Cham community at the port, or (c) the mission was a joint Butuan-Champa affair the Song scribes recorded as Pu-tuan. Each reading has different implications for the sea-lane reconstruction. Need: comparative work on Cham diaspora ports.
7. Java Sea connection — Intan and Cirebon shipwrecks. Dossier §3 reports Butuan-style gold motifs on cargo recovered from these 10th-century wrecks. If true, this evidences a Butuan→Java direct-trade leg distinct from the Butuan→Quanzhou run, and suggests the post-1011 “silence” in Chinese records may be a reorientation toward Majapahit-era Java. Need: published cargo manifests from the Intan/Cirebon excavations.

Workspace primaries to draw on in Cycle 62

• BnR /vol-33.md ll. 391+ — Pigafetta Italian original on Mazaua landing. Useful for sea-current and anchorage descriptions.
• BnR /vol-42.md l. 547 — Caraga joangas in Spanish Pintados-defense fleets; evidence for the post-Spanish persistence of indigenous large-vessel construction in the Agusan-Surigao region. Bridges the pre-1521 balangay tradition into the 1700s.
• BnR /vol-36.md ll. 765–769 — Recollect-era mission logistics in Caraga show continued use of large indigenous vessels for inter-island travel, post-1622.

Handoff Acknowledgments

• ✅ Received Cycle 62 lead assignment from Tala (sea lanes + balangay archaeology, jointly with Adat on the artifacts).

Notes for Cycle 62

The Mother Boat at 25m is the single most consequential maritime claim in the dossier. If the dating holds and the dimensions are confirmed, Butuan possessed deep-water cargo capacity that few contemporary Southeast Asian polities outside Sri Vijaya could match. That alone reframes “kingdom vs. port-of-trade” — a port-of-trade complex that builds 25-meter ocean-going vessels is operating at the upper end of regional capacity. — Amihan.